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Full Discussion: SED to extract characters
Top Forums Shell Programming and Scripting SED to extract characters Post 302130139 by jaduks on Friday 3rd of August 2007 07:01:56 AM
Old 08-03-2007
SED to extract characters

Are you meaning this type of extractions??

1)
$ echo "Red Hat Linux release 7.2 (Enigma)"
Red Hat Linux release 7.2 (Enigma)

**To extract the 7.2 from the above string
$ echo "Red Hat Linux release 7.2 (Enigma)" | sed 's/Red Hat Linux release \([0-9].*[0-9]\).*/\1/g'
7.2

2)
$ id | sed 's/uid=\([0-9]*\).*/\1/g'
64592

3)
$ echo "jadu[1023]" | sed 's/jadu\[\([0-9]*\).*\]/\1/g'
1023
 

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RHN_REGISTER(8) 						   Red Hat, Inc.						   RHN_REGISTER(8)

NAME
rhn_register - Connect to Spacewalk Server, Red Hat Satellite or Red Hat Network Classic. SYNOPSIS
rhn_register [options] DESCRIPTION
rhn_register is a client program that registers your system with "Spacewalk Server", "Red Hat Satellite" or "Red Hat Network Classic". After registering, your system can receive software updates, install new software, and remotely manage your system. It can run both in graphical and text modes. OPTIONS
-v, --verbose Increase the debugging output. --proxy=PROXY Specify an http proxy to use. --proxyUser=PROXYUSER Specify a username to use for an authenticated proxy. This option must be used in conjunction with proxyPassword. --proxyPassword=PROXYPASSWORD Specify a password to use for an authenticated proxy. This option must be used in conjunction with proxyUser. --nox Run in text mode. --version Show the program's version number and exit. -h, --help Show a help message and exit. FILES
/etc/sysconfig/rhn/systemid The digital server ID for this machine if the system has been registered onto "Spacewalk Server" or "Red Hat Satellite" or "Red Hat Network Classic". This file does not exist otherwise. /etc/sysconfig/rhn/up2date The common configuration file used by Red Hat client programs. SEE ALSO
rhn_check(8), rhnreg_ks(8), rhnsd(8), rhn-profile-sync(8), rhnplugin(8), up2date(5). AUTHORS
See the AUTHORS file included with this software. This manual page was written by James Bowes <jbowes@redhat.com> BUGS
Report bugs to <http://bugzilla.redhat.com>. COPYRIGHT
Copyright (C) 1999-2011 Red Hat, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. Linux 2011 February 4 RHN_REGISTER(8)
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