This script exploits bash's weird interpretation of POSIX's requirement that declaration builtins overloaded by functions must not modify the parsing of the arguments. Bash even extends this requirement to nonstandard extensions such as arrays. This typeset wrapper parses options by stealing the (approximately correct) optstring from ksh. It modifies each assignment then prints the effect of the command as a side-effect.
Code:
| for sh in bash bb dash yash gash bosh ksh kshv mksh loksh posh zsh mrsh; do | |
| printf '%-6s ' "${sh}:" | |
| "$sh" -c 'IFS=0; bash -c "printf \"%q \" \"\$@\"" bash $((x=1101001101))$((x))$((IFS=!IFS))${x}$((x)) ${x}$((x)) "${y:=$((x))}"${y+${z=$((y))}"$((y))"${z}$((IFS=!IFS))}' 2>&3 | |
| echo | |
| done 3>/dev/null |
| %hidden trace='strace -DDYYyqqqf' | |
| %hidden el=/usr/bin/execlineb | |
| %hidden bashargs='-sipo vi +o posix +o histexpand -O lastpipe -O extglob -O expand_aliases +O array_expand_once +O sourcepath' | |
| %hidden kshargs='-sipo vi -o posix' | |
| %hidden shexec='import os, os.path, sys, pwd; \ | |
| os.sched_setscheduler(0, os.SCHED_OTHER, os.sched_param(0)); \ | |
| os.nice(-os.getpriority(os.PRIO_PROCESS, 0)); \ | |
| os.environ.setdefault("TMPDIR", "/tmp"); \ | |
| os.environ.setdefault("BASH_COMPAT", "51"); \ | |
| p = { k: str(v) for k, v in zip(("USER", None, "UID", "GID", None, "HOME", "SHELL"), pwd.getpwuid(os.geteuid())) if k }; \ |
| #!/usr/bin/env bash | |
| BASH_COMPAT=51 | |
| # Swap or merge keys and indices | |
| function arr2set { | |
| typeset -i n m | |
| typeset -n _ret=$1 r | |
| [[ ${_ret@a} == *A* ]] || return | |
| shift | |
| for r do |
| 0: 0,4 | |
| 1: 0,5 | |
| 2: 0,6 | |
| 3: 0,2 |
| #!/usr/bin/env -S-- BASH_COMPAT=51 bash -O lastpipe -O extglob -O expand_aliases +O assoc_expand_once +O sourcepath | |
| typeset x | |
| x=$(pkgconf --var=loadablesdir bash) && | |
| [[ ! $BASH_LOADABLES_PATH =~ (^|:)"$x"($|:) ]] && | |
| BASH_LOADABLES_PATH+=${BASH_LOADABLES_PATH:+:}${x} | |
| for x in asort mktemp | |
| do enable -f "$x"{,} || exit | |
| done |
| (ins)ormaaj 65 (2713681) 2 ~ $ function f { unset -f f; typeset -ia fd; typeset -n fdn=fd[\${#fd[@]}]; { env -- BASH_FUNC_pre_pkg_{pretend,setup}'%%=() { function tc-check-openmp { return 0; }; }' execlineb -- "/proc/self/fd/${fd[0]}" "${fd[@]}"; } {fdn}<<\EOF {fdn}<<\EOF; typeset x; for x in "${fd[@]}"; do exec {x}<&-; done; }; f | |
| fdreserve 1 | |
| multisubstitute { | |
| importas -iu f0 FD0 | |
| elgetpositionals | |
| } | |
| emptyenv -P | |
| fdclose $1 | |
| define -sd " " v "${2} ${f0}" | |
| creatememfd $f0 "" |
| \unset -v aliasrestore | |
| aliasrestore=$(\alias -p) aliasrestore+=${aliasrestore:+$'\n\\'unset -v aliasrestore} | |
| \unalias -a | |
| function setupGlobalAliases { | |
| alias -- \ | |
| '--=-- ' \ | |
| 'l-=local -' \ | |
| 'fn=function ' \ | |
| 'exec=exec ' \ |
| #!/bin/false | |
| \typeset -a bool; bool+=([1]=) | |
| \typeset -n sh_file | |
| \test -v KSH_VERSION | |
| sh_file=${bool[$?]+bash_source[0]}${bool[!$?]+.sh.file} | |
| dotFilesPath=$(\findmnt -umlnfo target -O subvol=/vol/dotfiles "PARTUUID=$(\findmnt -umlnfo partuuid -T /)") | |
| [[ $sh_file == ?(*/)shell ]] | |
| \source -- ${bool[!$?]+"$sh_file"}${bool[$?]+"${dotFilesPath}/common/home/shell"}/functions | |
| rc_main "$@" |
| $ { function f { lsfd -np "$BASHPID" --summary=only -C ' :ASSOC == "mem"'; }; typeset -fx f; f; bash -ic 'f; type -t print; print -r :\); type -t print; f; print -r :D'; } | tr -s '\n ' ' '; echo | |
| 247 31 function :) builtin 36 :D |
