15 is a simple terminal emulator.
19 defines the window title (default 'st').
22 defines the window class (default $TERM).
25 prints version information to stderr, then exits.
27 .BI \-e " program " [ " arguments " "... ]"
30 instead of the shell. If this is used it
31 .B must be the last option
32 on the command line, as in xterm / rxvt.