Created
December 24, 2017 15:26
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POSIX shell compatible countdown timer. Credits to @cfajohnson
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| countdown() | |
| ( | |
| IFS=: | |
| set -- $* | |
| secs=$(( ${1#0} * 3600 + ${2#0} * 60 + ${3#0} )) | |
| while [ $secs -gt 0 ] | |
| do | |
| sleep 1 & | |
| printf "\r%02d:%02d:%02d" $((secs/3600)) $(( (secs/60)%60)) $((secs%60)) | |
| secs=$(( $secs - 1 )) | |
| wait | |
| done | |
| echo | |
| ) |
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