complete -c fold -s w -l width -d 'Use width columns' -r
complete -c fold -s b -l bytes -d 'Count bytes rather than columns'
complete -c fold -s s -l spaces -d 'Break at spaces'
complete -c fold -s o -l optimal -d 'Optimal fit'
complete -c fold -s h -l help -d 'Print help (see more with \'--help\')'