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Full Discussion: How to run shell script in silent mode
Top Forums UNIX for Dummies Questions & Answers How to run shell script in silent mode Post 91646 by grahamb on Sunday 4th of December 2005 12:11:51 PM
Old 12-04-2005
Running sliently - not interactively
Hi!

Try this idea;

If a script needs to test whether it is running in an interactive shell, it is simply a matter of finding whether the prompt variable, $PS1 is set. (If the user is being prompted for input, then the script needs to display a prompt.)
Code:
if [ -z $PS1 ] # what no prompt?
then
  # non-interactive;   ...
else
  # interactive;   ...
fi

There are other ideas there in this link: http://www.tldp.org/LDP/abs/html/intandnonint.html

One more is that if in background/foreground there is a tty-variable that is set or not set. You could also do something like put a special variable in "~./.profile" that shows that the user is online, eg: $PS1 above. (Just ideas: got no references or clearer ideas on these last ones!)

Hope that was helpful
GrahamB
 

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LEARN ABOUT XFREE86

backup_quit

BACKUP_QUIT(8)						       AFS Command Reference						    BACKUP_QUIT(8)

NAME
       backup_quit - Leaves interactive mode

SYNOPSIS
       quit [-help]

       q [-h]

DESCRIPTION
       The backup quit command exits interactive mode, returning the issuer to the regular shell prompt at which the backup or backup interactive
       command was issued to enter interactive mode. The command has no effect when issued outside interactive mode. Issuing the Ctrl-D command
       also exits interactive mode.

CAUTIONS
       To exit interactive mode, all jobs must be completed. Use the backup jobs command to list any jobs currently pending or executing, and the
       backup kill command to terminate them as necessary.

OPTIONS
       -help
	   Prints the online help for this command. All other valid options are ignored.

EXAMPLES
       The following command exits interactive mode:

	  backup> quit
	  %

PRIVILEGE REQUIRED
       None

SEE ALSO
       backup(8), backup_interactive(8), backup_jobs(8), backup_kill(8)

COPYRIGHT
       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26							    BACKUP_QUIT(8)
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