swupdate-progress is an example how to connect to SWUpdate via the progress interface. It shows on
stdout a simple bar with the percent indication of the current update and reports the result of the
update. It can optionally drive "psplash" or execute a script after an update.
-c Use colors to show results on stdout
-e Command to be execute after an update
-p send percentage to psplash
-r optionally reboot the target after a successful update
-s path to progress IPC socket in case the default is not taken
-w waits for a SWUpdate connection instead of exit with error
-q don't print progress bar
-h print a help