>Usage
The yum (Yellowdog Updater, Modified) command is a package manager used in CentOS, Red Hat Enterprise Linux (RHEL), and other RPM-based Linux distributions. It simplifies the process of managing software packages by automating tasks such as installation, updating, and removal of packages, while also handling dependencies.
The yum command has been mostly replaced by dnf in newer versions of CentOS and RHEL, but it still remains widely used in legacy systems.
>Synopsis
>Commands
install
Installs a specified package.
-c
> yum install vsftpd
(Installs the vsftpd package)
update
Updates all installed packages to their latest available versions.
remove
Uninstalls a specified package.
search
Searches for packages related to a specific name.
list
Lists package names from repositories. To this command, the user can add avalible (to list avalible packages) or installed (to list installed packages).
>Options
-c
Uses a specified configuration file instead of the default /etc/yum.conf.
Example:
-c
> yum -c /path/to/custom-yum.conf list installed
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Installed Packages
httpd.x86_64 2.4.6-93.el7.centos @base
vim-enhanced.x86_64 7.4.160-7.el7 @base
-y
Example:
-y
> yum -y install nano
Loaded plugins: fastestmirror Resolving Dependencies --> Running transaction check ---> Package nano.x86_64 0:2.3.1-10.el7 will be installed --> Finished Dependency Resolution Installed: nano.x86_64 0:2.3.1-10.el7 Complete!
--disablerepo
Temporarily disables a specific repository during the execution of the command. A repository is generally a webserver (or many more) holding software to download.
Example:
--disablerepo
> yum --disablerepo=extras update
Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Resolving Dependencies --> Running transaction check No packages marked for update