Korn Shell Programming by Example

Ksh Environment Options

The Korn shell is itself an executable program. This is why you put the #!/bin/ksh at the beginning of the file. Several environment options are set by default, and others can be set manually either when Ksh is invoked or afterward with the set command. Options can do many things, including affecting how Ksh processes commands. By typing set -o, you can see how your current options are set:

					$ set -o Current option settings allexport off keyword off nolog off trackall off braceexpand on login on notify off verbose off bgnice off markdirs off nounset off vi on emacs off monitor on physical off viraw off errexit off noclobber off posix off vi-show8 off gmacs off noexec off privileged off vi-tabcomplete off ignoreeof off ...