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--- centos_package_management [2018/03/05 07:46] – rpjday
+++ centos_package_management [2018/11/08 14:21] (current) – [Basic rpm querying] rpjday
@@ Line 1: / Line 1: @@
+===== Overview =====
+Basic and advanced package management.
+===== ELRepo =====
+  * [[http://elrepo.org/tiki/tiki-index.php|ELRepo.org]]
+Import public key:
 <code>
-/etc
+# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org (external link)
+</code>
+Install ELRepo:
+<code>
+# rpm -Uvh https://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm (external link)
+</code>
+===== Basic rpm querying =====
+Starting off:
+<code>
+$ rpm -qa
+$ rpm -qa "*core*"
+$ rpm -qf /usr/bin/gzip
+$ rpm -q gzip
+$ rpm -ql gzip
+$ rpm -qfl /usr/bin/gzip
+</code>
+Querying a package:
+<code>
+$ rpm -ql gzip
+$ rpm -qi gzip
+$ rpm -qR gzip
+$ rpm -q --changelog gzip
+$ rpm -qc httpd
+$ rpm -qd httpd
+$ rpm -q --scripts httpd
+</code>
+===== (Example) How to install ReiserFS =====
+[[https://tthtlc.wordpress.com/2014/09/16/how-to-install-reiserfs-in-centos/|How to install ReiserFS]]:
+<code>
+$ rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
+$ rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
+$ yum update
+$ yum install kmod-reiserfs reiserfs-utils
 </code>