10.0;von, revision 1.0, 88/01/21
von - activate the shell's -v flag.
usage: von
DESCRIPTION
von turns on input verification. As commands are executed, or comments
processed, they are written to the error output stream of the shell. In
shell scripts, you can use von to show the progress being made by the
script.
If von is turned on in a shell script, it remains on until that shell
script exits, or until overridden by a voff in a nested shell script.
When a shell script exits, the state of input verification is returned to
the state in effect just before the script was invoked.
von requires no arguments or options.
SEE ALSO
More information is available. Type
help voff For details about turning shell input verification off
help sh For details about the shell command line interpreter
help shell For general information about the shell