diff --git a/src/cmd/base32/mod.rs b/src/cmd/base32/mod.rs
index 97d931a..60ea587 100644
--- a/src/cmd/base32/mod.rs
+++ b/src/cmd/base32/mod.rs
@@ -20,10 +20,7 @@ impl Cmd for Base32 {
             .args(args())
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "No input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let color = match matches.get_one::<String>("color").map(String::as_str) {
             Some("always") => ColorChoice::Always,
             Some("ansi") => ColorChoice::AlwaysAnsi,
diff --git a/src/cmd/base64/mod.rs b/src/cmd/base64/mod.rs
index b47b963..c707c69 100644
--- a/src/cmd/base64/mod.rs
+++ b/src/cmd/base64/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Base64 {
             .args(args())
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "No input")));
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
         let color = match matches.get_one::<String>("color").map(String::as_str) {
             Some("always") => ColorChoice::Always,
             Some("ansi") => ColorChoice::AlwaysAnsi,
diff --git a/src/cmd/basename/mod.rs b/src/cmd/basename/mod.rs
index 31e2fe8..3fb0a45 100644
--- a/src/cmd/basename/mod.rs
+++ b/src/cmd/basename/mod.rs
@@ -1,6 +1,5 @@
 use super::Cmd;
 use clap::{Arg, ArgMatches, Command};
-use std::io;
 
 #[derive(Debug, Default)]
 pub struct Basename;
@@ -26,10 +25,7 @@ impl Cmd for Basename {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(mut base) = matches
             .get_one::<String>("NAME")
             .and_then(|x| x.split('/').last())
diff --git a/src/cmd/bootstrap/mod.rs b/src/cmd/bootstrap/mod.rs
index 94418fa..4b2cc73 100644
--- a/src/cmd/bootstrap/mod.rs
+++ b/src/cmd/bootstrap/mod.rs
@@ -5,8 +5,7 @@ use clap_complete_nushell::Nushell;
 use clap_mangen::Man;
 use std::{
     error::Error,
-    fs,
-    io::{self, ErrorKind},
+    fs, io,
     os::unix::fs::symlink,
     path::{Path, PathBuf},
 };
@@ -152,10 +151,7 @@ impl Cmd for Bootstrap {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(ErrorKind::Other, "No input").into());
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
         if let Some(prefix) = matches.get_one::<String>("prefix") {
             let usr = matches.get_flag("usr");
             if let Some(progpath) = crate::progpath() {
diff --git a/src/cmd/chmod/mod.rs b/src/cmd/chmod/mod.rs
index 960c6b1..ed7fd8b 100644
--- a/src/cmd/chmod/mod.rs
+++ b/src/cmd/chmod/mod.rs
@@ -43,10 +43,7 @@ impl Cmd for Chmod {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let feedback = Feedback::from_matches(matches);
         let mode = matches
             .get_one::<String>("mode")
diff --git a/src/cmd/chown/chgrp.rs b/src/cmd/chown/chgrp.rs
index 92cf1a6..8613475 100644
--- a/src/cmd/chown/chgrp.rs
+++ b/src/cmd/chown/chgrp.rs
@@ -36,10 +36,7 @@ impl Cmd for Chgrp {
             )
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let recurse = Recurse::from_matches(matches);
         let feedback = Feedback::from_matches(matches);
         let group = if let Some(grp) = matches.get_one::<String>("group") {
diff --git a/src/cmd/chown/mod.rs b/src/cmd/chown/mod.rs
index f8722f6..0a7b8fd 100644
--- a/src/cmd/chown/mod.rs
+++ b/src/cmd/chown/mod.rs
@@ -38,10 +38,7 @@ impl Cmd for Chown {
             )
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let recurse = Recurse::from_matches(matches);
         let feedback = Feedback::from_matches(matches);
         let (user, group) = if let Some(who) = matches.get_one::<String>("user") {
diff --git a/src/cmd/chroot/mod.rs b/src/cmd/chroot/mod.rs
index 3ad2e1c..8c66c87 100644
--- a/src/cmd/chroot/mod.rs
+++ b/src/cmd/chroot/mod.rs
@@ -38,10 +38,7 @@ impl Cmd for Chroot {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let Some(newroot) = matches.get_one::<String>("newroot") else {
             return Err(io::Error::new(io::ErrorKind::Other, "no new root given").into());
         };
diff --git a/src/cmd/clear/mod.rs b/src/cmd/clear/mod.rs
index 5ae0c02..b576b04 100644
--- a/src/cmd/clear/mod.rs
+++ b/src/cmd/clear/mod.rs
@@ -12,7 +12,7 @@ impl Cmd for Clear {
             .version(env!("CARGO_PKG_VERSION"))
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         print!("\x1b[2J\x1b[H");
         print!("\x1b[3J\x1b[H");
         Ok(())
diff --git a/src/cmd/cut/mod.rs b/src/cmd/cut/mod.rs
index 3415db0..47c361e 100644
--- a/src/cmd/cut/mod.rs
+++ b/src/cmd/cut/mod.rs
@@ -63,10 +63,7 @@ impl Cmd for Cut {
             )
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
         let files: Vec<String> = match matches.get_many::<String>("file") {
             Some(f) => f.cloned().collect(),
             None => vec!["-".to_string()],
diff --git a/src/cmd/dirname/mod.rs b/src/cmd/dirname/mod.rs
index 257868c..2201cbd 100644
--- a/src/cmd/dirname/mod.rs
+++ b/src/cmd/dirname/mod.rs
@@ -19,27 +19,25 @@ impl Cmd for Dirname {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        if let Some(matches) = matches {
-            if let Some(names) = matches.get_many::<String>("name") {
-                names.for_each(|name| {
-                    let path = match Path::new(name).parent() {
-                        Some(p) => p,
-                        None => Path::new("."),
-                    };
-                    let path = path.to_string_lossy();
-                    let path = if path.is_empty() {
-                        String::from(".")
-                    } else {
-                        path.to_string()
-                    };
-                    if matches.get_flag("zero") {
-                        print!("{path}\0");
-                    } else {
-                        println!("{path}");
-                    }
-                });
-            }
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
+        if let Some(names) = matches.get_many::<String>("name") {
+            names.for_each(|name| {
+                let path = match Path::new(name).parent() {
+                    Some(p) => p,
+                    None => Path::new("."),
+                };
+                let path = path.to_string_lossy();
+                let path = if path.is_empty() {
+                    String::from(".")
+                } else {
+                    path.to_string()
+                };
+                if matches.get_flag("zero") {
+                    print!("{path}\0");
+                } else {
+                    println!("{path}");
+                }
+            });
         }
         Ok(())
     }
diff --git a/src/cmd/echo/mod.rs b/src/cmd/echo/mod.rs
index 15dbd29..1e0bdeb 100644
--- a/src/cmd/echo/mod.rs
+++ b/src/cmd/echo/mod.rs
@@ -19,7 +19,7 @@ impl Cmd for Echo {
             ])
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
         let args: Vec<String> = env::args().collect();
         let idx = match crate::progname() {
             Some(s) if s.as_str() == "echo" => 1,
diff --git a/src/cmd/expand/mod.rs b/src/cmd/expand/mod.rs
index c40e6b8..03a4ef5 100644
--- a/src/cmd/expand/mod.rs
+++ b/src/cmd/expand/mod.rs
@@ -1,5 +1,3 @@
-use std::io;
-
 use super::Cmd;
 use clap::{Arg, ArgAction, Command, ValueHint};
 
@@ -40,10 +38,7 @@ impl Cmd for Expand {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         Ok(())
     }
 
diff --git a/src/cmd/factor/mod.rs b/src/cmd/factor/mod.rs
index f18ef90..afa4086 100644
--- a/src/cmd/factor/mod.rs
+++ b/src/cmd/factor/mod.rs
@@ -24,17 +24,15 @@ impl Cmd for Factor {
             )
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        if let Some(matches) = matches {
-            match matches.get_many::<u64>("number") {
-                Some(numbers) => {
-                    numbers.for_each(|n| print_factors(*n));
-                }
-                None => {
-                    for line in io::stdin().lock().lines() {
-                        for num in line?.split_whitespace() {
-                            print_factors(num.parse()?);
-                        }
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
+        match matches.get_many::<u64>("number") {
+            Some(numbers) => {
+                numbers.for_each(|n| print_factors(*n));
+            }
+            None => {
+                for line in io::stdin().lock().lines() {
+                    for num in line?.split_whitespace() {
+                        print_factors(num.parse()?);
                     }
                 }
             }
diff --git a/src/cmd/false/mod.rs b/src/cmd/false/mod.rs
index b6ea090..b35ef58 100644
--- a/src/cmd/false/mod.rs
+++ b/src/cmd/false/mod.rs
@@ -13,7 +13,7 @@ impl Cmd for False {
             .author("Nathan Fisher")
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
         process::exit(1);
     }
 
diff --git a/src/cmd/fold/mod.rs b/src/cmd/fold/mod.rs
index 23d198f..e613a07 100644
--- a/src/cmd/fold/mod.rs
+++ b/src/cmd/fold/mod.rs
@@ -46,10 +46,7 @@ impl Cmd for Fold {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let files = match matches.get_many::<String>("FILE") {
             Some(c) => c.map(String::to_string).collect(),
             None => vec!["-".to_string()],
diff --git a/src/cmd/groups/mod.rs b/src/cmd/groups/mod.rs
index 5f3336e..34cd807 100644
--- a/src/cmd/groups/mod.rs
+++ b/src/cmd/groups/mod.rs
@@ -1,7 +1,6 @@
 use super::Cmd;
 use crate::pw;
 use clap::{Arg, Command};
-use std::io;
 
 #[derive(Debug, Default)]
 pub struct Groups;
@@ -21,10 +20,7 @@ impl Cmd for Groups {
             .arg(Arg::new("user"))
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")))
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let groups = match matches.get_one::<String>("user") {
             Some(u) => pw::get_group_names_for_name(u)?,
             None => pw::get_group_names()?,
diff --git a/src/cmd/head/mod.rs b/src/cmd/head/mod.rs
index 24c1b3e..5a9a068 100644
--- a/src/cmd/head/mod.rs
+++ b/src/cmd/head/mod.rs
@@ -5,7 +5,7 @@ use std::{
     env,
     error::Error,
     fs,
-    io::{self, stdin, Read, Write},
+    io::{stdin, Read, Write},
 };
 use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
 
@@ -57,7 +57,7 @@ impl Cmd for Head {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
         let args: Vec<_> = env::args().collect();
         let idx = match crate::progname() {
             Some(s) if s.as_str() == "head" => 1,
@@ -80,9 +80,6 @@ impl Cmd for Head {
                 }
             }
         }
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "No input").into());
-        };
         if let Some(l) = matches.get_one("LINES") {
             lines = *l;
         }
diff --git a/src/cmd/hostid/mod.rs b/src/cmd/hostid/mod.rs
index 9741b5b..b813c2c 100644
--- a/src/cmd/hostid/mod.rs
+++ b/src/cmd/hostid/mod.rs
@@ -12,7 +12,7 @@ impl Cmd for Hostid {
             .version(env!("CARGO_PKG_VERSION"))
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let hostid = unsafe { libc::gethostid() };
         let hostid: String = format!("{hostid:x}").chars().skip(8).collect();
         println!("{}", hostid);
diff --git a/src/cmd/hostname/mod.rs b/src/cmd/hostname/mod.rs
index 32cdbda..56d982d 100644
--- a/src/cmd/hostname/mod.rs
+++ b/src/cmd/hostname/mod.rs
@@ -22,8 +22,7 @@ impl Cmd for Hostname {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let matches = matches.unwrap();
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
         if let Some(name) = matches.get_one::<String>("NAME") {
             unistd::sethostname(name)?;
             Ok(())
diff --git a/src/cmd/link/mod.rs b/src/cmd/link/mod.rs
index a97f147..46e66db 100644
--- a/src/cmd/link/mod.rs
+++ b/src/cmd/link/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Link {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let Some(f1) = matches.get_one::<String>("file1") else {
             return Err(Box::new(io::Error::new(
                 io::ErrorKind::Other,
diff --git a/src/cmd/logname/mod.rs b/src/cmd/logname/mod.rs
index a891038..22be191 100644
--- a/src/cmd/logname/mod.rs
+++ b/src/cmd/logname/mod.rs
@@ -14,7 +14,7 @@ impl Cmd for Logname {
             .version(env!("CARGO_PKG_VERSION"))
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let logname = unsafe { CStr::from_ptr(libc::getlogin()) };
         let logname = logname.to_str()?;
         println!("{logname}");
diff --git a/src/cmd/md5sum/mod.rs b/src/cmd/md5sum/mod.rs
index 7175933..8226ca8 100644
--- a/src/cmd/md5sum/mod.rs
+++ b/src/cmd/md5sum/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Md5sum {
             .args([args::check(), args::file()])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("file") {
             let mut erred = 0;
             for f in files {
diff --git a/src/cmd/mkfifo/mod.rs b/src/cmd/mkfifo/mod.rs
index 968f3f6..d086b04 100644
--- a/src/cmd/mkfifo/mod.rs
+++ b/src/cmd/mkfifo/mod.rs
@@ -1,7 +1,7 @@
 use super::Cmd;
 use crate::{args, mode::Parser, stat};
 use clap::{Arg, ArgMatches, Command};
-use std::{error::Error, io};
+use std::error::Error;
 
 #[derive(Debug, Default)]
 pub struct MkFifo;
@@ -35,10 +35,7 @@ impl Cmd for MkFifo {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
         let mode = if let Some(m) = matches.get_one::<String>("mode") {
             Parser::new(0o666).parse(m)?
         } else {
diff --git a/src/cmd/mknod/mod.rs b/src/cmd/mknod/mod.rs
index c556380..4c38fb6 100644
--- a/src/cmd/mknod/mod.rs
+++ b/src/cmd/mknod/mod.rs
@@ -40,10 +40,7 @@ impl Cmd for MkNod {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
         let Some(file) = matches.get_one::<String>("file") else {
             return Err(io::Error::new(io::ErrorKind::Other, "no file given").into());
         };
diff --git a/src/cmd/mktemp/mod.rs b/src/cmd/mktemp/mod.rs
index bda2c46..56e7cf4 100644
--- a/src/cmd/mktemp/mod.rs
+++ b/src/cmd/mktemp/mod.rs
@@ -36,10 +36,7 @@ impl Cmd for MkTemp {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let mut path = if let Some(t) = matches.get_one::<String>("tmpdir") {
             PathBuf::from(t)
         } else {
diff --git a/src/cmd/mod.rs b/src/cmd/mod.rs
index 61715e5..680c472 100644
--- a/src/cmd/mod.rs
+++ b/src/cmd/mod.rs
@@ -67,7 +67,7 @@ pub trait Cmd: fmt::Debug + Sync {
     /// Runs the applet
     /// # Errors
     /// Bubbles up any errors to the caller
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>>;
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>>;
     /// Returns the path relative to the binary where the link to this applet
     /// will be installed
     fn path(&self) -> Option<crate::Path>;
diff --git a/src/cmd/mountpoint/mod.rs b/src/cmd/mountpoint/mod.rs
index 0f15d58..c585fb8 100644
--- a/src/cmd/mountpoint/mod.rs
+++ b/src/cmd/mountpoint/mod.rs
@@ -55,10 +55,7 @@ impl Cmd for Mountpoint {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let file = matches.get_one::<String>("file").unwrap();
         if matches.get_flag("fs-devno") {
             if let Some(maj_min) = fs_devno(file)? {
diff --git a/src/cmd/nologin/mod.rs b/src/cmd/nologin/mod.rs
index 43fc229..41e2e8d 100644
--- a/src/cmd/nologin/mod.rs
+++ b/src/cmd/nologin/mod.rs
@@ -12,7 +12,7 @@ impl Cmd for Nologin {
             .about("Denies a user account login ability")
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         eprintln!("I'm sorry, I can't let you do that, Dave");
         process::exit(42);
     }
diff --git a/src/cmd/nproc/mod.rs b/src/cmd/nproc/mod.rs
index 51eae8f..d9b769c 100644
--- a/src/cmd/nproc/mod.rs
+++ b/src/cmd/nproc/mod.rs
@@ -1,6 +1,5 @@
 use super::Cmd;
 use clap::{Arg, ArgAction, Command};
-use std::io;
 
 #[derive(Debug, Default)]
 pub struct Nproc;
@@ -19,10 +18,7 @@ impl Cmd for Nproc {
             )
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if matches.get_flag("ALL") {
             println!("{}", unsafe { get_nprocs_conf() });
         } else {
diff --git a/src/cmd/printenv/mod.rs b/src/cmd/printenv/mod.rs
index 9c34aa8..8fd657b 100644
--- a/src/cmd/printenv/mod.rs
+++ b/src/cmd/printenv/mod.rs
@@ -1,4 +1,4 @@
-use std::{env, io};
+use std::env;
 
 use super::Cmd;
 use clap::{Arg, ArgAction, Command};
@@ -25,10 +25,7 @@ impl Cmd for Printenv {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(vars) = matches.get_many::<String>("var") {
             for var in vars {
                 let val = env::var(var)?;
diff --git a/src/cmd/pwd/mod.rs b/src/cmd/pwd/mod.rs
index 5705d32..97fb32b 100644
--- a/src/cmd/pwd/mod.rs
+++ b/src/cmd/pwd/mod.rs
@@ -1,6 +1,6 @@
 use super::Cmd;
 use clap::{Arg, ArgAction, Command};
-use std::{env, io, path::PathBuf};
+use std::{env, path::PathBuf};
 
 #[derive(Debug, Default)]
 pub struct Pwd;
@@ -26,10 +26,7 @@ impl Cmd for Pwd {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let cwd = if matches.get_flag("logical") {
             PathBuf::from(env::var("PWD")?)
         } else if matches.get_flag("physical") {
diff --git a/src/cmd/readlink/mod.rs b/src/cmd/readlink/mod.rs
index ace6c2c..7ac8765 100644
--- a/src/cmd/readlink/mod.rs
+++ b/src/cmd/readlink/mod.rs
@@ -1,6 +1,6 @@
 use crate::Cmd;
 use clap::{Arg, ArgAction, ArgMatches, Command, ValueHint};
-use std::{fs, io, path::PathBuf};
+use std::{fs, path::PathBuf};
 
 #[derive(Debug, Default)]
 pub struct Readlink;
@@ -31,10 +31,7 @@ impl Cmd for Readlink {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(paths) = matches.get_many::<String>("path") {
             let paths: Vec<_> = paths.collect();
             let len = paths.len();
diff --git a/src/cmd/realpath/mod.rs b/src/cmd/realpath/mod.rs
index d66d24c..da919be 100644
--- a/src/cmd/realpath/mod.rs
+++ b/src/cmd/realpath/mod.rs
@@ -1,6 +1,6 @@
 use super::Cmd;
 use clap::{Arg, ArgAction, Command, ValueHint};
-use std::{env, fs, io, process};
+use std::{env, fs, process};
 
 #[derive(Debug, Default)]
 pub struct Realpath;
@@ -24,10 +24,7 @@ impl Cmd for Realpath {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("path") {
             let mut erred = false;
             for f in files {
diff --git a/src/cmd/rev/mod.rs b/src/cmd/rev/mod.rs
index b95585c..2ae69d3 100644
--- a/src/cmd/rev/mod.rs
+++ b/src/cmd/rev/mod.rs
@@ -3,7 +3,7 @@ use crate::args;
 use clap::{Arg, Command};
 use std::{
     fs::File,
-    io::{self, BufRead, BufReader, ErrorKind, Write},
+    io::{self, BufRead, BufReader, Write},
 };
 use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
 
@@ -25,10 +25,7 @@ impl Cmd for Rev {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(ErrorKind::Other, "No input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let color = match matches.get_one::<String>("color").map(String::as_str) {
             Some("always") => ColorChoice::Always,
             Some("ansi") => ColorChoice::AlwaysAnsi,
diff --git a/src/cmd/rm/mod.rs b/src/cmd/rm/mod.rs
index 7c53863..5d7eba8 100644
--- a/src/cmd/rm/mod.rs
+++ b/src/cmd/rm/mod.rs
@@ -62,10 +62,7 @@ impl Cmd for Rm {
             )
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let mut actions = AllActions::from(matches);
         let proceed = match actions.prompt {
             When::Always => true,
diff --git a/src/cmd/rmdir/mod.rs b/src/cmd/rmdir/mod.rs
index 7d9bc65..1e8964a 100644
--- a/src/cmd/rmdir/mod.rs
+++ b/src/cmd/rmdir/mod.rs
@@ -1,7 +1,7 @@
 use super::Cmd;
 use crate::args;
 use clap::{Arg, ArgAction, Command, ValueHint};
-use std::{error::Error, fs, io, path::Path};
+use std::{error::Error, fs, path::Path};
 
 #[derive(Debug, Default)]
 pub struct Rmdir;
@@ -27,10 +27,7 @@ impl Cmd for Rmdir {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(directories) = matches.get_many::<String>("dir") {
             for dir in directories {
                 if matches.get_flag("parents") {
diff --git a/src/cmd/sha1sum/mod.rs b/src/cmd/sha1sum/mod.rs
index 060bfa1..ce553bd 100644
--- a/src/cmd/sha1sum/mod.rs
+++ b/src/cmd/sha1sum/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Sha1sum {
             .args([args::check(), args::file()])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("file") {
             let mut erred = 0;
             for f in files {
diff --git a/src/cmd/sha224sum/mod.rs b/src/cmd/sha224sum/mod.rs
index 69aaefa..5da6985 100644
--- a/src/cmd/sha224sum/mod.rs
+++ b/src/cmd/sha224sum/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Sha224sum {
             .args([args::check(), args::file()])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("file") {
             let mut erred = 0;
             for f in files {
diff --git a/src/cmd/sha256sum/mod.rs b/src/cmd/sha256sum/mod.rs
index 1412516..8233482 100644
--- a/src/cmd/sha256sum/mod.rs
+++ b/src/cmd/sha256sum/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Sha256sum {
             .args([args::check(), args::file()])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("file") {
             let mut erred = 0;
             for f in files {
diff --git a/src/cmd/sha384sum/mod.rs b/src/cmd/sha384sum/mod.rs
index b7e8672..94b4b34 100644
--- a/src/cmd/sha384sum/mod.rs
+++ b/src/cmd/sha384sum/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Sha384sum {
             .args([args::check(), args::file()])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("file") {
             let mut erred = 0;
             for f in files {
diff --git a/src/cmd/sha512sum/mod.rs b/src/cmd/sha512sum/mod.rs
index 3d63bf0..a600360 100644
--- a/src/cmd/sha512sum/mod.rs
+++ b/src/cmd/sha512sum/mod.rs
@@ -19,10 +19,7 @@ impl Cmd for Sha512sum {
             .args([args::check(), args::file()])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("file") {
             let mut erred = 0;
             for f in files {
diff --git a/src/cmd/shitbox/mod.rs b/src/cmd/shitbox/mod.rs
index 20063e5..664db57 100644
--- a/src/cmd/shitbox/mod.rs
+++ b/src/cmd/shitbox/mod.rs
@@ -1,10 +1,6 @@
 use super::{Cmd, COMMANDS};
 use clap::Command;
-use std::{
-    error::Error,
-    io::{self, ErrorKind},
-    process,
-};
+use std::{error::Error, process};
 
 #[derive(Debug, Default)]
 pub struct Shitbox;
@@ -33,13 +29,10 @@ impl Cmd for Shitbox {
             .subcommands(&subcommands)
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(ErrorKind::Other, "No input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
         if let Some((name, matches)) = matches.subcommand() {
             if let Some(command) = crate::cmd::get(name) {
-                if let Err(e) = command.run(Some(matches)) {
+                if let Err(e) = command.run(matches) {
                     eprintln!("Error: {name}: {e}");
                     process::exit(1);
                 }
diff --git a/src/cmd/sleep/mod.rs b/src/cmd/sleep/mod.rs
index b7111fe..196e938 100644
--- a/src/cmd/sleep/mod.rs
+++ b/src/cmd/sleep/mod.rs
@@ -27,8 +27,8 @@ impl Cmd for Sleep {
     }
 
     #[allow(clippy::cast_sign_loss, clippy::cast_possible_truncation)]
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        if let Some(raw) = matches.unwrap().get_one::<f64>("seconds") {
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
+        if let Some(raw) = matches.get_one::<f64>("seconds") {
             let seconds = *raw as u64;
             let nanos = ((raw % 1.0) * 10e-9) as u32;
             let s = Duration::new(seconds, nanos);
diff --git a/src/cmd/sync/mod.rs b/src/cmd/sync/mod.rs
index fd238c2..7e6d8d8 100644
--- a/src/cmd/sync/mod.rs
+++ b/src/cmd/sync/mod.rs
@@ -1,8 +1,7 @@
-use crate::unistd;
-
 use super::Cmd;
+use crate::unistd;
 use clap::{Arg, ArgAction, Command};
-use std::{error::Error, fs::OpenOptions, io};
+use std::{error::Error, fs::OpenOptions};
 
 #[derive(Debug, Default)]
 pub struct Sync;
@@ -34,10 +33,7 @@ impl Cmd for Sync {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
         if let Some(files) = matches.get_many::<String>("FILE") {
             for f in files {
                 let mut opts = OpenOptions::new();
diff --git a/src/cmd/true/mod.rs b/src/cmd/true/mod.rs
index 3506d76..d80ce2d 100644
--- a/src/cmd/true/mod.rs
+++ b/src/cmd/true/mod.rs
@@ -13,7 +13,7 @@ impl Cmd for True {
             .author("Nathan Fisher")
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
         process::exit(0);
     }
 
diff --git a/src/cmd/unlink/mod.rs b/src/cmd/unlink/mod.rs
index d3adb5d..3eeea2e 100644
--- a/src/cmd/unlink/mod.rs
+++ b/src/cmd/unlink/mod.rs
@@ -1,7 +1,6 @@
 use super::Cmd;
 use crate::{args, unistd};
 use clap::{Arg, Command};
-use std::io;
 
 #[derive(Debug, Default)]
 pub struct Unlink;
@@ -21,10 +20,7 @@ impl Cmd for Unlink {
             ])
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(files) = matches.get_many::<String>("file") {
             for f in files {
                 unistd::unlink(f)?;
diff --git a/src/cmd/wc/mod.rs b/src/cmd/wc/mod.rs
index 545b2bf..6eadb07 100644
--- a/src/cmd/wc/mod.rs
+++ b/src/cmd/wc/mod.rs
@@ -6,7 +6,7 @@ use std::{
     error::Error,
     fmt::{self, Write},
     fs,
-    io::{self, stdin, Read},
+    io::{stdin, Read},
     ops::{AddAssign, BitAnd, BitAndAssign, BitOr, BitOrAssign},
     str::FromStr,
 };
@@ -52,10 +52,7 @@ impl Cmd for Wc {
             ])
     }
 
-    fn run(&self, matches: Option<&ArgMatches>) -> Result<(), Box<dyn Error>> {
-        let Some(matches) = matches else {
-            return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
-        };
+    fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn Error>> {
         let mut flags = 0;
         for arg in &["LINES", "WORDS", "CHARS", "BYTES", "MAX"] {
             if matches.get_flag(arg) {
diff --git a/src/cmd/which/mod.rs b/src/cmd/which/mod.rs
index 710a0ff..ed51c46 100644
--- a/src/cmd/which/mod.rs
+++ b/src/cmd/which/mod.rs
@@ -1,7 +1,7 @@
 use super::Cmd;
 use crate::{bitflags::BitFlags, mode::Bit};
 use clap::{Arg, Command};
-use std::{env, fs::File, io, os::unix::prelude::MetadataExt, path::PathBuf, process};
+use std::{env, fs::File, os::unix::prelude::MetadataExt, path::PathBuf, process};
 
 #[derive(Debug, Default)]
 pub struct Which;
@@ -15,10 +15,7 @@ impl Cmd for Which {
             .arg(Arg::new("COMMAND").num_args(1..))
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let rawpath = if let Ok(p) = env::var("PATH") {
             p
         } else {
@@ -31,7 +28,7 @@ impl Cmd for Which {
                 if let Some(p) = which(command, &path) {
                     println!("{p}");
                 } else {
-                    println!("which: no {} in ({})", command, &rawpath);
+                    println!("which: no {command} in ({})", &rawpath);
                     failures += 1;
                 }
             }
diff --git a/src/cmd/whoami/mod.rs b/src/cmd/whoami/mod.rs
index adea215..ee065a7 100644
--- a/src/cmd/whoami/mod.rs
+++ b/src/cmd/whoami/mod.rs
@@ -15,7 +15,7 @@ impl Cmd for Whoami {
             .author("Nathan Fisher")
     }
 
-    fn run(&self, _matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
+    fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let pwnam = unsafe {
             let pw = *getpwuid(geteuid());
             CStr::from_ptr((pw).pw_name)
diff --git a/src/cmd/yes/mod.rs b/src/cmd/yes/mod.rs
index 37ef44c..9175b05 100644
--- a/src/cmd/yes/mod.rs
+++ b/src/cmd/yes/mod.rs
@@ -1,6 +1,5 @@
 use super::Cmd;
 use clap::{Arg, Command};
-use std::io;
 
 #[derive(Debug, Default)]
 pub struct Yes;
@@ -13,10 +12,7 @@ impl Cmd for Yes {
             .arg(Arg::new("msg").num_args(1).default_value("y"))
     }
 
-    fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(matches) = matches else {
-            return Err(Box::new(io::Error::new(io::ErrorKind::Other, "no input")));
-        };
+    fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
         let msg = matches.get_one::<String>("msg").unwrap();
         loop {
             println!("{msg}");
diff --git a/src/hash/mod.rs b/src/hash/mod.rs
index 61fad88..fd203aa 100644
--- a/src/hash/mod.rs
+++ b/src/hash/mod.rs
@@ -12,7 +12,6 @@ use {
 };
 
 pub enum HashType {
-    Blake2b,
     Md5,
     Sha1,
     Sha224,
@@ -54,7 +53,6 @@ pub fn check_sums(file: &str, hashtype: HashType, erred: &mut usize) -> Result<(
             io::Error::new(io::ErrorKind::Other, "invalid checksum file").into(),
         )?;
         let s = match hashtype {
-            HashType::Blake2b => unimplemented!(),
             HashType::Md5 => compute_hash(file, Md5::new())?,
             HashType::Sha1 => compute_hash(file, Sha1::new())?,
             HashType::Sha224 => compute_hash(file, Sha224::new())?,
diff --git a/src/lib.rs b/src/lib.rs
index c4d7a20..926bf0e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -68,7 +68,7 @@ pub fn run() {
     if let Some(progname) = progname() {
         if let Some(command) = cmd::get(&progname) {
             let cli = command.cli();
-            if let Err(e) = command.run(Some(&cli.get_matches())) {
+            if let Err(e) = command.run(&cli.get_matches()) {
                 eprintln!("{progname}: Error: {e}");
                 process::exit(1);
             }