18 lines
510 B
Bash
Executable File
18 lines
510 B
Bash
Executable File
#!/bin/sh
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if [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
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cat <<EOF
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Usage: ${0##*/} [FILES]
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Shuffle letters randomly and print result to stdout. If no file is provided,
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stdin is used.
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EOF
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exit
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fi
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fold -w 1 "$@" | shuf | tr -d '\n' && echo
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## Interesting AWK alternative, much slower however.
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# awk -F'\n' 'BEGIN {srand()} {input=input $0} END {count = split(input,a,""); while(count >= 1) {i = (int(rand()*count) % count)+1; printf("%s", a[i]); a[i]=a[count];delete a[count]; count--} print ""}' "$@"
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