31 lines
573 B
Bash
31 lines
573 B
Bash
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#!/usr/bin/env sh
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#
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# Super simple script that saves clock to file and reads from it later
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# Something like fake-hwclock from debian
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# CC0-1.0
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CMD="${1:-save}"
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if [ ! -v FILE ]; then
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echo 'missing $FILE'
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exit 64
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fi
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case $CMD in
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save)
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date -u '+%Y-%m-%d %H:%M:%S' > $FILE
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;;
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load)
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if [ ! -e $FILE ]; then
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echo "attempted to load from nonexistent file"
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exit 65
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fi
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NEW=$(cat $FILE)
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date -u -s "$NEW"
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;;
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*)
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echo "unknown subcommand"
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exit 66
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;;
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esac
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