16 lines
430 B
Text
16 lines
430 B
Text
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#!/bin/sh
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# Usage: sleep_until <time>
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# Ex: sleep-until 3:00 pm
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if [ -n "$1" ] && date --date="$*" > /dev/null 2>&1; then
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SLEEP_TIME="$(( $(date -f - +%s- <<< "$*"$'\nnow') 0 ))"
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if [ "$SLEEP_TIME" -gt 0 ]; then
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echo "Sleeping until: $(date --date="$*") (${SLEEP_TIME}s)"
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sleep "$SLEEP_TIME"
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else
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echo "Sadly, you cannot sleep to a time in the past"
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fi
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else
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echo "Please input a valid date"
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fi
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