concatenate variables problem Post: 302482707

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Hi, I'm new to shell programming. I have two variables a and b a=val1 b=val2 could anyone kindly post the shell script to concatenate the values of variable a and b with an underscore(_) in between? The final output should be val1_val2.

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rhsm-debug

rhsm-debug(8)						   Certificate Information Tool 					     rhsm-debug(8)

NAME

       rhsm-debug - Compiles information about system's entitlements, products, and identity used by Red Hat Subscription Manager.

SYNOPSIS

       rhsm-debug module [options]

DESCRIPTION

       rhsm-debug compiles information about system's entitlements, products, and identity used by Red Hat Subscription Manager.

COMMANDS AND OPTIONS

       rhsm-debug  has specific options available for each module, depending on what operation is being performed. The currently supported modules
       are:

	      1. system

   COMMON OPTIONS
       -h, --help
	      Prints the specific help information for the given command.

       --proxy=PROXY
	      Uses an HTTP proxy. The PROXY name has the format hostname:port.

       --proxyuser=PROXYUSERNAME
	      Gives the username to use to authenticate to the HTTP proxy.

       --proxypassword=PROXYPASSWORD
	      Gives the password to use to authenticate to the HTTP proxy.

   SYSTEM OPTIONS
       The system command pulls in debug information off of the current system

       --destination=DESTINATION
	      The directory to place the resulting debug data. The default is /tmp.

       --no-archive
	      Generates an uncompressed directory intead of a gzipped file.

       --sos  Excludes data files that are also collected by the sosreport tool.

BUGS

       This tool is part of Red Hat Subscription Manager. To file bugs against this command-line tool, go  to  <https://bugzilla.redhat.com>,  and
       select Red Hat > Red Hat Enterprise Linux > subscription-manager.

AUTHORS

       William Poteat<wpoteat@redhat.com>. The rhsm-debug tool was written by William Poteat.

COPYRIGHT

       Copyright (c) 2012 Red Hat, Inc. This is licensed under the GNU General Public License, version 2 (GPLv2). A copy of this license is avail-
       able at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.

version 1.3							   May 23, 2013 						     rhsm-debug(8)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

problem with variables

Discussion started by: udi

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Problem in script when using variables

Discussion started by: palsevlohit_123

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Problem with variables in awk

Discussion started by: apresa

4. Shell Programming and Scripting

how to concatenate values of two variables with an underscore(_) in between

Discussion started by: badrimohanty