mirror of
https://github.com/notwa/rc
synced 2024-11-05 05:29:02 -08:00
40 lines
641 B
Text
40 lines
641 B
Text
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#!/usr/bin/env bash
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now() {
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local dt=
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local fmt='+%F_%T_%N'
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if [ -z "$1" ]; then
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dt="$(date "$fmt")"
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elif [ -e "$1" ]; then
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dt="$(date -r "$1" "$fmt")"
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else
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dt="$(date -d "$1" "$fmt")"
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fi
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local F= T= N=
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F=${dt%%_*}
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T=${dt#*_}
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T=${T%_*}
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N=${dt##*_}
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local H= M= S=
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H=${T%%:*}
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M=${T#*:}
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M=${M%:*}
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S=${T##*:}
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# don't interpret numbers as octal
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F=${F#0*}
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T=${T#0*}
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N=${N#0*}
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H=${H#0*}
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M=${M#0*}
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S=${S#0*}
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local ms=
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let 'ms=(H*60*60+M*60+S)*1000+N/1000000'
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ms=$(printf '%08i' $ms)
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echo "${F}_${ms}"
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}
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now "$@"
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