The commands in Xselect consist of a command name, and a group of parameters. The parameters are of two kinds, queried and hidden. The queried parameters will be prompted for if not entered on the command line, and can be entered (provided the correct order is maintained) without their command name. The hidden parameters must be entered in the form name=value and will not be prompted for.
The convention for commands adopted in this helpfile is as follows:
xsel > comm <par1> <par2> [par3name = <par3>] [par4name = <par4>]
Now, comm is the command, and parX the arguments, and parXname is the name of the parameter. The arguments in arrow-brackets <> will be prompted for if not given on the command line. The arguments in [<>] are hidden. Thus, in the above example, entering comm to the XSELECT prompt will result in the following: xsel > comm > Value of par1? >[default1] > Value of par2? >[default2] xsel >
where the prompting messages are, of course, tailored to the situation and the user has to either enter the parameters when asked or type <CR> to get the defaults.
All commands and parameter names can be abbreviated to their shortest unique abbreviation, and are not case sensitive. The same is true for the values of the verb_what parameters. I.e. the following all produce the same result:
xsel > show obscat
xsel > show obs
xsel > sh OBS ...