A simple cron implementation

Compile and run

sh dev.sh

Build

sh build.sh

Run

$ ./cron -h

  Cron by Howard Chu

    -h: Print this message
    -f <crontab file>: Path of the crontab file (default: ~/.crontab.txt)

Run it as a daemon

nohup ./cron > /dev/null &

Notes

This is a cron implementation with my own twist.

For example, *-10, 40-* is legal here, though illegal in classic cron.