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Full Discussion: UNIX for learning sed/awk/grep..etc..
Top Forums UNIX for Beginners Questions & Answers UNIX for learning sed/awk/grep..etc.. Post 302991576 by bakunin on Monday 13th of February 2017 06:22:26 PM
Old 02-13-2017
If you are working on AIXyour system default shell is ksh (ksh88 to be precise). On most Linux systems it is bash though, which is almost the same as the Korn shell, but not quite. You might want to install a ksh (actually ksh93) and use this for your scripting if you set up a Linux as a learning environment.

Busybox is perhaps the quickest way to get a UNIX-like system running, but you can also install Linux into a virtual machine on your (Windoze-)-PC. 2GB RAM is probably all that is needed.

For books about shell programming I'd like to suggest two which i found informative yet great fun to read:

Barry Rosenberg: Hands-On KornShell93 Programming
Dale Dougherty: sed & awk (O'Reilly)

If you want to know what the absolute limits of shell-programming are (like i have a form in this file and i want to fill it automatically with the information from this file to produce a stream of filled forms ...) i suggest - here's the boss cooking himself and he is not shy of spicing it up -

Tim O'Reilly: UNIX Power Tools (O'Reilly)

I hope this helps.

bakunin
 

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LEARN ABOUT DEBIAN

suspend

suspend(1)                                                         User Commands                                                        suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                         suspend(1)
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