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| #!/bin/sh | |
| TIME_BEGIN=$(date +%s) | |
| TIME_NOW="$TIME_BEGIN" | |
| TIME_END=$(date -d "$1" +%s) | |
| TIME_LEFT=$(expr "$TIME_END" - "$TIME_NOW") | |
| while [ ${TIME_LEFT} -gt 0 ] | |
| do | |
| echo ${TIME_LEFT}s left | |
| sleep 1 | |
| TIME_NOW=$(date +%s) | |
| TIME_LEFT=$(expr ${TIME_END} - ${TIME_NOW}) | |
| done | |
| while : | |
| do | |
| echo "Time is up!" \\a | |
| sleep 1 | |
| done |
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