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automatically detect which of the four main shells that sh is

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Connor Olding 2024-07-30 08:53:19 -07:00
parent 28b4942252
commit de4c5ec593
1 changed files with 11 additions and 1 deletions
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12
sh/recombine
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@ -23,12 +23,22 @@ case "$sh" in
(osh) SH=OSH c=osh;;
(posh) SH=POSH c=posh;;
(yash) SH=YASH c=yash;;
(zsh) SH=ZSH c=zsh; set -o SH_WORD_SPLIT;;
(zsh) SH=ZSH c=zsh;;
(sh)
f() { ! return 1; }
g() { return 256; }
if f; then # (ash, hush) || (zsh)
g && SH=ASH c=ash || SH=ZSH c=zsh
else # (bash, mksh, osh) || (dash, ksh, loksh, oksh, posh, yash)
g && SH=BASH c=bash || SH=DASH c=dash
fi;;
(*)
printf >&2 %s\\n "unknown shell (\$0): $0"
exit 1
esac
[ "$SH" != zsh ] || set -o SH_WORD_SPLIT
printf %s\\n '#!/usr/bin/env false' '[ -n "$preload" ] || exit 1' ''
for f in "${HOME:?}/sh"/*; do
[ -n "${f##*.*}" ] && [ -f "$f" ] || continue