Those are some commands that you’ll probably need sometime to install, remove, update, etc. software in your CentOS/Fedora/Red Hat box. As I’m more used to apt-get I’ve searched a fairly complete list of tasks I’ll need in the future.
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See installed packages:
yum list installed
Search for an installed package:
yum list installed | grep php
See available packages:
yum list available
Search for available packages:
yum list available | grep php
See information of a package:
yum info php Name : php Arch : x86_64 Version : 5.3.3 Release : 27.el6_5 Size : 3.5 M Repo : installed ...
Install a package:
yum install package-name
Install a package without being asked for permission before installation process:
yum -y install package-name
Remove a package:
yum remove package-name
Remove a package without being asked for permission before removing process:
yum -y remove package-name
Remove orphan packages:
package-cleanup --quiet --leaves --exclude-bin | xargs yum remove -y
Check if a package has an update available:
yum check-update package-name
Update a package:
yum update package-name
See if any update is available:
yum check-update
Update everything:
yum update
Automatic updates
su -c '/sbin/chkconfig --level 345 yum on; /sbin/service yum start'
Note: There is no separate yum service that runs on your system. The command given above enables the control script /etc/rc.d/init.d/yum. This control script activates the script /etc/cron.daily/yum.cron, which causes the cron service to perform the system update automatically at 4am each day.
Add EPEL and Remi repositories:
For i686:
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
For x86_64:
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
Now you’ll see the new files that configure those repositories:
$ ls -1 /etc/yum.repos.d/ CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo epel.repo epel-testing.repo remi.repo
The Remi repository comes disabled by default so you’ll have to enable it by changing it’s enabled option to 1 or executing this command:
yum-config-manager --enable remi
Add ElRepo repository:
Import the public key:
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
Install the repo:
rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm
Add RPMforge repository:
Import the GPG key:
rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
Install for i686:
rpm -Uvh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.i686.rpm
Install for x86_64:
rpm -Uvh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm
Now you can install any software from that repository:
yum install htop
See available group of packages (for example MySQL is made by many packages):
yum grouplist ... Installed Groups: Administration Tools DNS Name Server Dialup Networking Support ... Available Groups: Authoring and Publishing Base Beagle ...
Install a grouplist:
yum groupinstall 'Beagle'
Update a grouplist:
yum groupupdate 'Beagle'
Remove a grouplist:
yum groupremove 'Beagle'
Clean the cache to delete files from /var/cache/yum
yum clean all
View the history of different installations, removes, etc.:
yum history
D | Login user | Date and time | Action(s) | Altered
-------------------------------------------------------------------------------
12 | <user> | 2014-05-22 21:33 | Install | 2
11 | <user> | 2014-05-22 21:31 | Install | 3
10 | <user> | 2014-05-22 21:29 | Install | 6
9 | <user> | 2014-05-22 21:05 | Install | 4
8 | System <unset> | 2014-04-19 01:55 | I, U | 117 EE
7 | root <root> | 2013-08-14 14:48 | I, U | 156 EE
6 | root <root> | 2013-08-14 14:37 | Erase | 1
5 | System <unset> | 2011-12-20 20:03 | I, U | 162 EE
4 | System <unset> | 2011-07-10 19:29 | Install | 3
3 | System <unset> | 2011-07-10 19:22 | Update | 60 <
2 | System <unset> | 2011-07-08 20:03 | Erase | 6 >
1 | System <unset> | 2011-07-08 20:43 | Install | 276
To see a detailed information of an specific history operation use this command:
yum history info 11
Loaded plugins: fastestmirror
Transaction ID : 11
Begin time : Thu May 22 21:31:08 2014
Begin rpmdb : 292:63d8bb066751f0def9baf9c3aca697fa2dfaef21
End time : 21:31:10 2014 (2 seconds)
End rpmdb : 295:0f2bb4c03af71739f9be1f59c7bcfab9540de5d8
User : <user>
Return-Code : Success
Command Line : install php
Transaction performed with:
Installed rpm-4.8.0-37.el6.x86_64 @base
Installed yum-3.2.29-43.el6.centos.noarch @updates
Installed yum-plugin-fastestmirror-1.1.30-17.el6_5.noarch @updates
Packages Altered:
Install php-5.3.3-27.el6_5.x86_64 @updates
Dep-Install php-cli-5.3.3-27.el6_5.x86_64 @updates
Dep-Install php-common-5.3.3-27.el6_5.x86_64 @updates
You can see in the “Packages Altered” area what packages were installed, deleted, updated or whatever.
See the list of configured repositories:
yum repolist repo id repo name status base CentOS-6 - Base 6.365+2 extras CentOS-6 - Extras 14 updates CentOS-6 - Updates 1.103 repolist: 7.482
Ref: http://www.rackspace.com/knowledge_center/article/installing-rhel-epel-repo-on-centos-5x-or-6x
http://wiki.centos.org/AdditionalResources/Repositories/RPMForge
http://elrepo.org/tiki/tiki-index.php
http://www.tecmint.com/20-linux-yum-yellowdog-updater-modified-commands-for-package-mangement/