RPM(Red Hat Manager)

  • RPM is a low-level package manager of RHEL-based Linux system ,that is used to install, install ,update, remove and verify software packages. It mange .rpm(example: package.rpm) packages files, do not resolve the dependencies automatically and used manual installation and troubleshooting.

RPM options:-

rpm -ivh pacakge.rpm => install the package

-i = install
-v = verbose output(detailed information)
-h = show download progress.

rpm -qa => list all installed package
-q= querry
-a= all

rpm -Vf /path/to/package-file => verify the system modifed or not(auditing purpose)

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output meanings:-

S- file size changed
M- permission changed
D - device major/minor number changed
L - sym link changed
U- user ownership changed
G - group ownership changed
c - configuration changed
T- Timestamp changed ( file modified date/time)
5 - MD5 checksum changed(file content changed)
. - Nothing changed

rpm -ev package-name => remove the pacakges
rpm -qf package-name => find out which package a file belong to

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rpm -Fvh mypackage.rpm => -F is used for freshening installed package ( if already installed , it will be upgrade it)
-l => list file installed package
-qi => get info about package.

YUM(yellowdog updater, modified)

  • YUM is a package manager for RPM based linux system ,that automatically resolve dependencies when installing , updating, or removing software.
  • YUM configuration file location => /etc/yum.conf or/etc/yum.repo.d(later we will discuss local repo creation for offline package installation) YUM options:-

yum clean all => clean the yum cache directory
yum list all=> To show all available installed and available packages
yum list installed => To show all available installed packages .

yum install telnet => To install particular package
yum remove telnet => To remove particular package
yum search httpd => To search httpd related package give format like package name and description , summaries.

yum list httpd => check httpd installed or not and what are the version package is available
yum info httpd => Details about httpd

yum repolist => list the enabled repositories
$ sudo yum update => update

dnf (Dandified YUM)

  • It's faster, more reliable and handle dependencies better than yum . Syntax is almost same as yum .dnf faster and handling dependencies improved. sudo dnf install httpd -y=> Auto confirmation

dnf list intalled | grep httpd => check if package already installed or not.