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 REDHAT

rhnreg_ks

RHNREG_KS(8)						    Red Hat Linux System Manual 					      RHNREG_KS(8)

NAME

       rhnreg_ks - a program for non interactively registering systems to Red Hat Network

SYNOPSIS

       rhnreg_ks [OPTION]... [PACKAGE NAME]...

DESCRIPTION

       rhnreg_ks  is  a  utility  for  registering a system with the Red Hat Network. It is designed to be used in a non-interactive enviroment (a
       kickstart style install, for example). All the information can be specified on the commandline or stdin.

       --profilename
	      Specify the profilename that should be used as an identifier for the system in Red Hat Network

       --username
	      The username to register the system with under Red Hat Network. This can be an existing Red Hat Network username, or a new username.

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

       --orgid
	      Specify an organizational id of the org to register this system under.  This is optional, and only used if registered a system to an
	      existing Red Hat Network organization.

       --orgpassword
	      The password assocated with the orgig specified with the --orgid option. This is an unencrypted password.

       --email
	      The email address associated with the username specified iwth the --username option.

       --serialnumber
	      Specify a servial number to associate with the system. This is optional, and only useful when combined with an orgid.

       --contactinfo
	      Read contact info from standard in. The format is one entry per line, colon seperated. Valid options are reg_num, title, first_name,
	      last_name, company, position, address1, address2, city, state, zip, country, phone, fax, contact_email, contact_mail, contact_phone,
	      contact_fax, contact_special, contact_newsletter.

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

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

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

       --version
	      Show the version fo rhnreg_ks

       --proxy
	      Specify a http proxy to use.

FILES

       /etc/sysconfig/rhn/up2date
	      Configuration settings for up2date and rhnreg_ks
       /usr/share/rhn/RHNS-CA-CERT
	      The ssl certificate authority file used by rhnreg_ks to validate the Red Hat Network ssl servers.

EXAMPLES

       The following registers a new system to Red Hat Network.

	      rhnreg_ks --profilename "example_profile_name" --username "someexampleuser@example.com" --password "foobar"

       The following examples registers a new system to Red Hat Network including contact info.

	      rhnreg_ks --profilename "example_profile_name" --username "someexampleuser@example.com" --password "foobar" --contactinfo < contactinfo

	      where the file "contactinfo" contains data in the format:

	      first_name: Billy
	      last_name: Bob
	      company: SomeCompanyName
	      city: Springfield
	      fax: 555-5555
	      phone: 555-5555

SEE ALSO

       Configuration  can  be  done  via  up2date  --configure. rhnreg_ks is used to register a system to Red Hat Network.  Visit <http://rhn.red-
       hat.com> for access or to sign up.  You can also run up2date to register a system with Red Hat Network.

Authors
       Written by Adrian Likins <alikins@redhat.com>

REPORTING BUGS

       Report bugs to <http://bugzilla.redhat.com>.

COPYRIGHT

       Copyright (C) 1999-2002 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.

4th Berkeley Distribution					 Wed 10 April 2002						      RHNREG_KS(8)