/usr/share/zsh/functions/Misc/allopt is in zsh-common 5.1.1-1ubuntu2.
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 | # This function lists options with the no's in front removed for
# improved comprehension, i.e. `norcs off' becomes `rcs on'.
# The format is otherwise like that with `kshoptionprint' set,
# i.e. you can see all options whether on or off.
# It can take a list of option names or parts thereof to search for
# via egrep.
#
# Written by Sweth Chandramouli with hacks by Bart Schaefer.
listalloptions () {
local OPT_NAME OPT_VALUE
builtin set -o | while read OPT_NAME OPT_VALUE ; do
if [[ ${OPT_NAME#no} != ${OPT_NAME} ]] ; then
OPT_VALUE=${(L)${${OPT_VALUE:s/on/OFF}:s/off/on}}
OPT_NAME=${OPT_NAME#no}
fi
echo "${(r:21:)OPT_NAME} ${OPT_VALUE}"
done
}
if [[ -n $@ ]]; then
listalloptions | egrep "${(j.|.)@}"
else
listalloptions
fi
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