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# (C) 2010 magicant
# Completion script for the "tail" command.
# Supports POSIX 2008, GNU coreutils 8.6, FreeBSD 8.1, OpenBSD 4.8, NetBSD 5.0,
# Mac OS X 10.6.4, SunOS 5.10, HP-UX 11i v3.
function completion/tail {
case $("${WORDS[1]}" --version 2>/dev/null) in
(*'coreutils'*) typeset type=GNU ;;
(*) typeset type="$(uname 2>/dev/null)" ;;
esac
case $type in
(GNU) typeset long=true ;;
(*) typeset long= ;;
esac
typeset OPTIONS ARGOPT PREFIX
OPTIONS=( #>#
"c: ${long:+--bytes:}; specify the number of bytes to print"
"f; keep watching the file for more data"
"n: ${long:+--lines:}; specify the number of lines to print"
) #<#
case $type in (*BSD|Darwin|SunOS)
OPTIONS=("$OPTIONS" #>#
"r; print lines in reverse order"
) #<#
esac
case $type in (*BSD|Darwin|HP-UX)
OPTIONS=("$OPTIONS" #>#
"b:; specify the number of 512-byte blocks to print"
) #<#
esac
case $type in (FreeBSD|NetBSD|Darwin)
OPTIONS=("$OPTIONS" #>#
"F; like -f, but reopen the file if renamed"
) #<#
esac
case $type in (GNU|FreeBSD)
OPTIONS=("$OPTIONS" #>#
"q ${long:+--quiet --silent}; never print filename headers"
) #<#
esac
case $type in (GNU)
OPTIONS=("$OPTIONS" #>#
"--follow::; specify how to watch the file for more data"
"F; like --follow=name --retry"
"--max-unchanged-stats:; recheck file status every n checks"
"--pid:; specify the ID of a process to follow"
"--retry; try to reopen the file if removed"
"--sleep-interval:; specify the number of seconds to wait between checks for more data"
"v --verbose; always print filename headers"
"--help"
"--version"
) #<#
esac
command -f completion//parseoptions ${long:+-es}
case $ARGOPT in
(-)
command -f completion//completeoptions
;;
([bcn]|--bytes|--lines)
case $type in (GNU)
if command -vf completion//prefixdigits >/dev/null 2>&1 ||
. -AL completion/_blocksize; then
if command -f completion//prefixdigits; then
command -f completion//completesizesuffix b GNU
fi
fi
esac
;;
(--follow) #>>#
complete -P "$PREFIX" -D "never reopen the file" descriptor
complete -P "$PREFIX" -D "reopen the file when renamed/removed" name
;; #<<#
(--pid)
typeset pid args
while read -r pid args; do
complete -P "$PREFIX" -D "$args" -- "$pid"
done <(ps -A -o pid= -o args= 2>/dev/null)
;;
('')
complete -f
;;
esac
}
# vim: set ft=sh ts=8 sts=8 sw=8 noet:
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