Another one line command where I'd like to determine if Ubuntu or Red Hat when running command Post: 303040339

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Top Forums UNIX for Beginners Questions & Answers Another one line command where I'd like to determine if Ubuntu or Red Hat when running command Post 303040339 by greavette on Saturday 26th of October 2019 10:12:26 PM

10-26-2019

Registered User

Another one line command where I'd like to determine if Ubuntu or Red Hat when running command

Hello Forum,

I'm making very good progress on my report thanks to the very helpful people on this forum. I've been able to successfully create my report for my Red Hat servers. But I do have a few ubuntu servers in the mix and I'd like to capture some data from them when an ssh connection is made.

I have a command here to find the inactive kernels on a Red Hat VM:

Code:

rpm -qa | grep '^kernel-[0-9]' |grep -vE `uname -r` | paste -sd \;

I'm trying to get this one line command to be Linux Type aware by issuing something like the following where if the os-release is Red Hat then I issue the command above to find the Red Hat installed kernels. This isn't working but this is what I'm trying to do:

Code:

awk -F= '/^NAME/{print $2}' /etc/os-release 2>/dev/null || grep Red |cat /etc/redhat-release 2>/dev/null || lsb_release -a 2>/dev/null | grep Description | cut -f2

I'm not sure if it's even possible but I would really like to issue the command to find the installed kernels for Red Hat servers and if the servers are ubuntu then issue another command for Ubuntu inactive kernels. I'm not sure what the command is to find the Ubuntu inactive kernels so I'll look that up...but for this post could someone point me in the right direction here on how to write the one line command to check for O/S type and issue commands based on that type.

Thank you.

greavette

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LEARN ABOUT CENTOS

rhnreg_ks

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

NAME

       rhnreg_ks - A program for non interactively registering systems to Spacewalk Server, Red Hat Satellite or Red Hat Network Classic.

SYNOPSIS

       rhnreg_ks [options]

DESCRIPTION

       rhnreg_ks  is  a  utility  for  registering  a  system with the "Spacewalk Server", "Red Hat Satellite" or "Red Hat Network Classic". It is
       designed to be used in a non-interactive environment  (a kickstart style install, for example).	All the information can  be  specified	on
       the command line or stdin.

OPTIONS

       --profilename
	      Specify  the profile name that should be used as an identifier for the system in Spacewalk Server, Red Hat Satellite or Red Hat Net-
	      work Classic

       --username
	      The username to register the system with under Spacewalk Server, Red Hat Satellite or Red Hat Network Classic. This can be an exist-
	      ing Spacewalk, Red Hat Satellite or Red Hat Network Classic username, or a new username.

       --password
	      The password associated with the username specified with the --username option. This is an unencrypted password.

       --activationkey
	      Specify/use a serial number to associate with the system. This is optional, but activation keys can really simplify the registration
	      process. Learn more about activation keys in the online RHN documentation.

       --contactinfo
	      This option has been deprecated. Please login to the server web user interface and update your contactinfo.

       --nohardware
	      Do not probe or upload any hardware information.

       --nopackages
	      Do not profile or upload any package information.

       --novirtinfo
	      Do not profile or upload any virtualization information.

       --norhnsd
	      Do not start rhnsd after completion.

       --force
	      Register the system even if it has already been registered.

       --version
	      Show the version of rhnreg_ks.

       --proxy
	      Specify a HTTP proxy to use.

       --proxyUser
	      Specify a username to use with an authenticated HTTP proxy.

       --proxyPassword
	      Specify a password to use with an authenticated HTTP proxy.

       --sslCACert
	      Specify a path to a SSL CA certificate to use.

       --serverUrl
	      Specify a URL to as the server.

       -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", "Red Hat Satellite"  or  "Red  Hat
	      Network Classic".  This file does not exist otherwise.

       /etc/sysconfig/rhn/up2date
	      The common configuration file used by RHN client programs.

EXAMPLES

       Register a new system to Spacewalk / Red Hat Satellite / Red Hat Network Classic:

	      rhnreg_ks --profilename "example_profile_name" --username "someexampleuser" --password "foobar"

SEE ALSO

       rhn_check(8), rhn_register(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 Adrian Likins <alikins@redhat.com> and 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						      RHNREG_KS(8)