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|
#compdef head ghead
local curcontext=$curcontext state state_descr line expl opts args ret=1
typeset -A opt_args
if _pick_variant gnu=GNU unix --version; then
args=(
'(-n --lines -c --bytes)'{-c+,--bytes=}'[print the first (or with -, all but the last) specified bytes]:number of bytes:->number'
'(-n --lines -c --bytes)'{-n+,--lines=}'[print the first (or with -, all but the last) specified lines]:number of lines:->number'
'(-q --quiet --silent -v --verbose)'{-q,--quiet,--silent}'[never print headers giving file names]'
'(-q --quiet --silent -v --verbose)'{-v,--verbose}'[always print headers giving file names]'
'(- *)--help[display help and exit]'
'(- *)--version[output version information and exit]'
)
else
opts=(-A '-*')
args=( '(-c)-n+[display the first specified lines]:number of lines' )
case $OSTYPE in
(freebsd*|darwin*|dragonfly*|netbsd*)
args+=( '(-n)-c+[display the first specified bytes]:number of bytes' )
;;
esac
fi
_arguments -C -s -S $opts : $args '*:file:_files' && return 0
case $state in
(number)
local mlt sign digit
mlt='multiplier:multiplier:((b\:512 K\:1024 KB\:1000 M\:1024\^2'
mlt+=' MB\:1000\^2 G\:1024\^3 GB\:1000\^3 T\:1024\^4 TB\:1000\^4))'
sign='sign:sign:((-\:"print all but the last specified bytes/lines"'
sign+=' +\:"print the first specified bytes/lines (default)"))'
digit='digits:digit:(0 1 2 3 4 5 6 7 8 9)'
if compset -P '(-|+|)[0-9]##'; then
_alternative $mlt $digit && ret=0
elif [[ -z $PREFIX ]]; then
_alternative $sign $digit && ret=0
elif compset -P '(+|-)'; then
_alternative $digit && ret=0
fi
;;
esac
return ret
|
