SetProcTitle

On some Unix systems it is possible to creatively "corrupt" the process arguments. This results in "ps" output showing something different. Sendmail, for instance, uses this to indicate what each of its processes is currently doing (e.g. "connecting to host FOO")

Sometimes this functionality is gathered into a libc utility function setproctitle(3): [L1 ]

It appears that there is no way to do a similar thing for a Tcl/Tk program.