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Full Discussion: Storing command output in a variable and using cut/awk
Top Forums Shell Programming and Scripting Storing command output in a variable and using cut/awk Post 302913995 by rbatte1 on Thursday 21st of August 2014 09:17:59 AM
Old 08-21-2014
JustALol,
I think you are trying to over work this and have confused it trying to make it neat. Would this do?:-
Code:
md5sum file1 | read newvar filename
print $newvar

What is the intention with this? If you are looking to store the value long term and then check for unauthorised changes, then md5sum allows you to read a file containing the hashes and compare them:-
Code:
echo "Original file" > my_test_file
for file in *
do
   md5sum $file
done > /tmp/my_hashes

echo "Changed file" > my_test_file
md5sum -c /tmp/my_hashes

Does that work with what you are really intending to do?



Robin
Last edited by rbatte1; 08-21-2014 at 10:18 AM.. Reason: Addressed to JustALol, not Franklin52
 

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LEARN ABOUT DEBIAN

gst-md5sum-0.8

gst-md5sum-0.8(1)						   User Commands						 gst-md5sum-0.8(1)

NAME

       gst-md5sum-0.8, gst-md5sum - get an md5sum of a GStreamer pipeline through md5sink

SYNOPSIS

       gst-md5sum-0.8 [--verbose] [gst-std-options] [partial-pipeline-description]

       gst-md5sum [--verbose] [gst-std-options] [partial-pipeline-description] [--gst-list-mm] [--gst-mm=string] [--print]

DESCRIPTION

       gst-md5sum-0.8 generates MD5 checksums of the data generated by a GStreamer pipeline.

       In theory, both of the following commands should print out the same checksum:

       gst-md5sum-0.8 filesrc location=music.mp3

       md5sum music.mp3

       If  the	pipeline  contains  an md5sink element, gst-md5sum-0.8 queries it for the md5sum at the end of pipeline iteration. If the pipeline
       does not contain an md5sink element, gst-md5sum-0.8 automatically connects an md5sink to the right-hand side of the given pipeline.

       See gst-launch(1) or the GStreamer documentation for more information on how to create a partial-pipeline-description.

       gst-md5sum is a wrapper script that runs the latest installed version of gst-md5sum-X.X. For  example,  if  both  gst-md5sum-0.7  and  gst-
       md5sum-0.8 are installed on your system, gst-md5sum runs gst-md5sum-0.8.

OPTIONS

       The following options are supported by gst-md5sum-0.8 and gst-md5sum:

       --verbose       Output verbose information. You can also use -v to specify this option.

       gst-std-options Standard options available for use with most GStreamer applications.  See gst-std-options(5) for more information.

       The following options are supported by gst-md5sum only:

       --gst-list-mm   List found major/minor versions. This option displays the versions that are available.

       --gst-mm=string Force  major/minor  version.  This  option  enables you to specify a specific version to run, if you do not want to run the
		       default version.

       --print	       Print wrapped command line. This option displays the command that will be run, and then runs the command.

OPERANDS

       The following operands are supported:

       partial-pipelinePartialppipeline description.

EXAMPLES

       Example 1: Running the Wrapper Script and Displaying the Command Name

       example% gst-md5sum --print
       /usr/bin/gst-md5sum-0.8

FILES

       The following files are used by this application:

       /usr/bin/gst-md5sum-0.8 Executable for GNOME help browser

       /usr/bin/gst-md5sum     Wrapper script that runs the latest installed version of gst-md5sum-X.X

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWgnome-media		   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |External			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       gst-complete(1), gst-compprep(1), gst-feedback(1), gst-inspect(1),  gst-launch(1),  gst-launch-ext(1),  gst-register(1),  gst-thumbnail(1),
       gst-typefind(1), gst-xmlinspect(1), gst-xmllaunch(1), gstreamer-properties(1), libgstreamer-0.8(3), libgstgetbits(3), gst-std-options(5)

NOTES

       Original man page written by the GStreamer team at http://gstreamer.net/.

       Updated by Brian Cameron, Sun Microsystems Inc., 2004.

SunOS 5.10							    14 Oct 2004 						 gst-md5sum-0.8(1)
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