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rc/sh/wat

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#!/usr/bin/env zsh
# YES_ZSH
# NO_BASH
# NO_DASH
# wat - a better and recursive which/whence
# via: https://leahneukirchen.org/dotfiles/tools.html
wat() { ### @-
( # constrain unalias
for cmd; do
if (( $+aliases[$cmd] )); then
printf '%s: aliased to %s\n' $cmd $aliases[$cmd]
local -a words=(${${(z)aliases[$cmd]}:#(*=*|rlwrap|noglob|command)})
unalias $cmd
if [[ $words[1] == '\'* ]]; then
words[1]=${words[1]#'\'}
unalias $words[1] 2>/dev/null
fi
wat $words[1]
elif (( $+functions[$cmd] )); then
whence -v $cmd
whence -f $cmd
elif (( $+commands[$cmd] )); then
wat $commands[$cmd]
elif [[ -h $cmd ]]; then
file $cmd
wat $cmd:A
elif [[ -x $cmd ]]; then
file $cmd
else
which $cmd
fi
done
)
}
[ "${SOURCING:-0}" -gt 0 ] || wat "$@"