talarmclock - scripts - random scripts
  HTML git clone https://git.parazyd.org/scripts
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       talarmclock (386B)
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            1 #!/bin/sh
            2 
            3 wattime="${1:-10:40}"
            4 
            5 currentime=$(date +%s)
            6 wakeuptime=$(date -d "today $wattime" +%s)
            7 howmuchslp=$(( $wakeuptime - $currentime ))
            8 
            9 printf "(*) armed at %s!\\n" "$wattime"
           10 printf "(*) you'll be getting about %d hours of sleep\\n" "$(( $howmuchslp / 60 / 60 ))"
           11 printf "(*) good night!\\n"
           12 
           13 sleep "$howmuchslp"
           14 amixer set Master 100
           15 mpv --loop $HOME/music/WAKEUP.mp3
           16 exit 0