The previous current window is returned. Default is no change. Read and execute the long commands in filename . Set terse mode to flag . In terse mode, the command window stays hidden even in command mode, and errors are reported by sounding the terminal's bell.
Flag can take on the same val- ues as in foreground above.
Returns the old terse flag. De- fault is no change. Undefine alias . Undefine variable . List all variables.