7 lines
217 B
Plaintext
7 lines
217 B
Plaintext
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#!/bin/bash
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while IFS='' read -r -d '' -n 1 char
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do
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printf %s "$char" | ( [ $(( $RANDOM % 2 )) -eq 0 ] && tr '[[:lower:]]' '[[:upper:]]' || tr '[[:upper:]]' '[[:lower:]]' )
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done <<< "${@:-$(cat /dev/stdin)}"
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