/usr/share/bash-completion/completions/fstrim is in util-linux 2.29.2-1+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | _fstrim_module()
{
local cur prev OPTS
COMPREPLY=()
cur="${COMP_WORDS[COMP_CWORD]}"
prev="${COMP_WORDS[COMP_CWORD-1]}"
case $prev in
'-o'|'--offset'|'-l'|'--length'|'-m'|'--minimum')
COMPREPLY=( $(compgen -W "num" -- $cur) )
return 0
;;
'-h'|'--help'|'-V'|'--version')
return 0
;;
esac
case $cur in
-*)
OPTS="--all
--offset
--length
--minimum
--verbose
--help
--version"
COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
return 0
;;
esac
local MPOINTS
MPOINTS=$(findmnt -rno SOURCE,TARGET | awk '/^\/dev/{print $2}')
COMPREPLY=( $(compgen -W "$MPOINTS" -- $cur) )
return 0
}
complete -F _fstrim_module fstrim
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