Linux in a Nutshell, Fifth Edition

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Chapter 6: The Bash Shell and Korn Shell

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

nohup

nohup command [arguments] &

Don’t terminate a command after logout. nohup is a Korn shell

alias:

nohup='nohup '

The embedded space at the end lets nohup interpret the following

command as an alias, if needed.

popd

popd [-n] [+count] [-count]

Bash only. Pop the top directory off the directory stack (as shown

by the dirs command), and change to the new top directory, or

manage the directory stack.

Options

-n Don’t change to the new top directory; just manipulate the

stack.

+count

Remove the item count entries from the left, as shown by dirs.

Counting starts at zero. No directory change occurs.

-count

Remove the item count entries from the right, as shown by

dirs. Counting starts at zero. No directory change occurs.

print

print [options] [string ...]

Korn shell only. Display string (on standard output by default).

print includes the functions of echo and can be used in its place on

most Unix systems.

Options

- Ignore all subsequent options.

-- Same as -.

-e Interpret escape sequences in argument strings. (This is the

default, anyway.) Use it to undo an earlier -r in the same

command line. ksh93 only.

-f format

Print like printf, using format as the format string. Ignores the

-n, -r, and -R options. ksh93 only.

-n Don’t end output with a newline.

-p Send string ...