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Operating Systems Linux Fedora All different versions of UNIX Post 302855583 by ajahuja on Friday 20th of September 2013 10:37:34 AM
Old 09-20-2013
Linux

If your question is to know the list of distros, I say count goes on increasing. But the Best way to differentiate is by package management.
  1. Debian based. packages are installed using .deb files. It uses very powerful package management tool. I suppose to be the best and easy to use as it manages dependencies as well. Various Distros include : Debian, Ubuntu, Knoppix and many more.
  2. rpm based. These use .rpm files. Very easy to install and use. Various Distros include: Redhat, Fedora, Opensuse, Mandriva, Centos and many more.
Many Companies have their own versions of linux as well. Ex: Solaris, HP-UX etc.

If you wanna kickstart go ahead with Fedora (rpm) or Debian. Ubuntu will be way too easy to use.
 

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RPMKEYS(8)						      System Manager's Manual							RPMKEYS(8)

NAME
rpmkeys - RPM Keyring SYNOPSIS
rpmkeys {--import|--checksig} DESCRIPTION
The general forms of rpm digital signature commands are rpmkeys --import PUBKEY ... rpmkeys {-K|--checksig} PACKAGE_FILE ... The --checksig option checks all the digests and signatures contained in PACKAGE_FILE to ensure the integrity and origin of the package. Note that signatures are now verified whenever a package is read, and --checksig is useful to verify all of the digests and signatures associated with a package. Digital signatures cannot be verified without a public key. An ASCII armored public key can be added to the rpm database using --import. An imported public key is carried in a header, and key ring management is performed exactly like package management. For example, all cur- rently imported public keys can be displayed by: rpm -qa gpg-pubkey* Details about a specific public key, when imported, can be displayed by querying. Here's information about the Red Hat GPG/DSA key: rpm -qi gpg-pubkey-db42a60e Finally, public keys can be erased after importing just like packages. Here's how to remove the Red Hat GPG/DSA key rpm -e gpg-pubkey-db42a60e SEE ALSO
popt(3), rpm(8), rpmdb(8), rpmsign(8), rpm2cpio(8), rpmbuild(8), rpmspec(8), rpmkeys --help - as rpm supports customizing the options via popt aliases it's impossible to guarantee that what's described in the manual matches what's available. http://www.rpm.org/ <URL:http://www.rpm.org/> AUTHORS
Marc Ewing <marc@redhat.com> Jeff Johnson <jbj@redhat.com> Erik Troan <ewt@redhat.com> Panu Matilainen <pmatilai@redhat.com> Red Hat, Inc 29 October 2010 RPMKEYS(8)
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