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Full Discussion: Need Help to deal with empty string
Top Forums Shell Programming and Scripting Need Help to deal with empty string Post 302267405 by slant-40 on Friday 12th of December 2008 09:39:11 AM
Old 12-12-2008
What i'd do (and you may or may not be able to do this is) -
direct your "grep" to a file as well as to the standard output (do it twice)
and at the end of the "do", the following
if [ ! -s (whatever you called your redirect file) ]
then
echo "STRING NOT FOUND IN FILE"
fi
 

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LEARN ABOUT DEBIAN

lp-shell

lp-shell(1)						      General Commands Manual						       lp-shell(1)

NAME

       lp-shell - Open an interactive launchpadlib shell.

SYNOPSIS

       lp-shell [-a] [-cPROGRAM] [--python] [--ipython] [service] [LP API version]

DESCRIPTION

       lp-shell opens an interactive Python shell with a launchpadlib.Launchpad object "lp" which is ready for use.

       It  authenticates against Launchpad with the consumer name "udt-lp-shell". When using lp-shell with the -a option it will use the anonymous
       login from launchpadlib.Launchpad.

       By default lp-shell connects to the "production" Launchpad service using the "1.0" LP API version.

       If you want to connect to another Launchpad service, call lp-shell with the service name as the second argument. lp-shell supports all ser-
       vices known by launchpadlib Python module.  Currently known are (list can be incomplete or outdated): "production", "staging", "dogfood".

       A  different  LP  API version can be selected by passing the API version to use as the third argument. Current supported are: "beta", "1.0"
       and "devel".

OPTIONS

       -a     Login anonymously into Launchpad.

       -c PROGRAM
	      Don't enter a shell but only run the specified Python program and exit.

       --ipython
	      Use an ipython shell if available (default).

       --python
	      Use a regular python shell.

AUTHORS

       lp-shell was written by Martin Pitt <martin.pitt@ubuntu.com>.

       It is released under the terms of the GNU General Public License, version 2 or (at your option) any later version.

lptools 							   27 March 2010						       lp-shell(1)
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