nicowilliams

Long and Short CLI Options getopt_long()-like for Bash

Ever wanted to write bash scripts that can take long option names, but then struggled to have anything like a normal Unix program's handling of long and short options?

Yeah, me too. Finally I wrote a getopts_long() for Bash:

# getopts_long long_opts_assoc_array_name optstring optname args...

kurahaupo

#!/bin/bash

pid=${1:-$PPID}

signals="$(trap -l)"

declare -A SIG
for s in ${signals//') '/=}
do
    i=${s%%=*}

kurahaupo

readkey() {
    local char
    IFS= \
    read -rs -d '' -N1 key || return $?     # use -n1 on older versions
    while
        case "$key" in
        ('')  key=$'\n' ; break ;;          # compensate for bug
        ( $'\e[M'??? ) break ;;             # mouse report
        ( $'\e' | $'\e[' | $'\e['[?O] | $'\e['*[\;0-9] | $'\e[M'* | $'\eO' ) ;;
        ( [$'\xc0'-\$'xfe'] \