A simple timer/stopwatch utility written in c++ ps. code is old so expect some dumb stuff.
-h [ --help ] Print help messages
-c [ --command ] arg Command to execute
-t [ --time ] arg Time for countdown
-s [ --stopwatch ] Start stopwatch
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cdwn -t 2m30s -c "echo Hello, World!"
counts down 2m30s and executesecho Hello, World!
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cdwn -s
starts a stopwatch