34 lines
667 B
Bash
Executable File
34 lines
667 B
Bash
Executable File
#!/bin/bash
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function helpexit() {
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echo "Simple Timer."
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echo '$PREFIX is printed before the time'
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echo '$POSTFIX is printed after the time'
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exit
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}
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for (( i=1; i<=$#; i++ )); do
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[[ "${!i}" = "--help" ]] && helpexit
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[[ "${!i}" = "-h" ]] && helpexit
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done
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function displaytime {
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local T=$1
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local D=$((T/60/60/24))
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local H=$((T/60/60%24))
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local M=$((T/60%60))
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local S=$((T%60))
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printf '\r%s[' $PREFIX
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(( $D > 0 )) && printf '%dd ' $D
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(( $T > 3599 )) && printf '%02d:' $H
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printf '%02d:%02d]%s\r' $M $S $POSTFIX
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}
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while true; do
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displaytime "$SECONDS" >&2
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sleep 1
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# die if parent dies
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kill -0 $PPID 2>/dev/null || exit
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done
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