зеркало из https://github.com/mozilla/pjs.git
51 строка
909 B
Bash
Executable File
51 строка
909 B
Bash
Executable File
#!/bin/bash -e
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delim=,
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while getopts "d:" optname;
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do
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case $optname in
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d) delim=$OPTARG;;
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esac
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done
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if [[ $OPTIND -gt 1 ]]; then
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shift 2
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fi
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if [[ -n "$4" ]]; then
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for a in $1; do for b in $2; do for c in $3; do for d in $4; do echo $a$delim$b$delim$c$delim$d; done; done; done; done
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elif [[ -n "$3" ]]; then
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for a in $1; do for b in $2; do for c in $3; do echo $a$delim$b$delim$c; done; done; done
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elif [[ -n "$2" ]]; then
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for a in $1; do for b in $2; do echo $a$delim$b; done; done
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elif [[ -n "$1" ]]; then
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for a in $1; do echo $a; done
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else
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cat<<EOF
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usage: combo.sh [-d delim] list1 [list2 [list3 [list4]]]
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output combinations of items in each list using delim as the delimiter
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-d delim specifies the delimiter. The default is comma (,).
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$combo.sh "a b"
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a
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b
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combo.ah "a b" "1 2"
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a,1
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a,2
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b,1
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b,2
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combo.ah -d "-" "a b" "1 2"
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a-1
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a-2
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b-1
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b-2
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EOF
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fi
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