Watch

watch is a command to observe the output of a command as it is repeated over time. The terminal is filled with the output as it updates.

Defaults:
 * keeps repeating until the program is interrupted.
 * inteval of 2 seconds

Options
Highlights differences since the last update, or from the beginning. Sets the update interval Tries hard to keep the interval precise (see [ntptime]) Turn off the header. Beep if command has a non-zero exit code. Freeze updates if the command has a non-zero exit code, and exit on any key press. Exit when the output changes Interpret ANSI color sequences Command is given to [sh] -c (requires special quoting) Display hellp and exit Display version and exit
 * -d --differences [permanent]
 * -n --interval seconds
 * -p --precise
 * -t --no-title
 * -b --beep
 * -e --errorexit
 * -g --chgexit
 * -c --color
 * -x --exec
 * -h --help
 * -v --version