2022-08-06 05:16:17 +00:00
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#!/bin/sh
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2024-05-11 00:07:23 +00:00
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if [ "$1" = "-n" ] ; then
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template='[:alnum:]'
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shift
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else
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template='[:alnum:]+=\-_'
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fi
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2022-08-06 05:16:17 +00:00
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if [ -z "$1" ] ; then
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2024-05-11 00:07:23 +00:00
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echo "usage: $0 [-n] length" >&2
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2022-08-06 05:16:17 +00:00
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exit 1
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fi
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2024-05-11 00:07:23 +00:00
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LC_ALL=C tr -dc "$template" </dev/urandom | \
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2022-08-06 05:16:17 +00:00
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fold -w$1 | head -n1
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