ctrlaltdel --version (return code: 0)
ctrlaltdel from util-linux 2.27.1
ctrlaltdel --help (return code: 0)
Usage:
ctrlaltdel hard|soft
Set the function of the Ctrl-Alt-Del combination.
Options:
-h, --help display this help and exit
-V, --version output version information and exit
For more details see ctrlaltdel(8).