======RPM commands======

RPM package is a powerful utility to manage the software in all major Linux distributions.  RPMs can be used to,

  * Install packages
  * Remove packages
  * Upgrade packages
  * Verify packages

Here are some useful command to manage RPM packages,

 

1. Getting detailed information about the package httpd
>   >  > **rpm -qi httpd**>   >  
2. Determining which package installed the file /etc/httpd/conf.d/httpd-portal.conf,
> **rpm -qf /etc/httpd/conf.d/httpd-portal.conf**
3. Showing all the files installed my httpd
> **rpm -ql httpd**
4. Viewing the documentation files for the command httpd,
> **rpm -qd httpd**
5. Listing all files included in an rpm file,
> **rpm -qpl /mnt/iso/suse/i586/wget-1.10.2-78.i586.rpm**
6. Verify if the package is installed or not,
> **rpm -qa | grep httpd**
7. To check what has changed in the files on the system since the HTTPD rpm originally installed,
> **rpm -V httpd**
8. Checking package to ensure its integrity and origin:    (NOTE: gpg  or  pgp software must be installed on your system before you use this   command)
> **rpm -K /mnt/iso/suse/i586/wget-1.10.2-78.i586.rpm**
9. To install wget RPM package,
> **rpm -ivh /mnt/iso/suse/i586/wget-1.10.2-78.i586.rpm**
10. Upgrading the package wget:    (NOTE: if the package is not installed it will install it for You, like option “-ivh”),
> **rpm -Uvh /mnt/iso/suse/i586/wget-1.10.2-78.i586.rpm**
11. Upgrade the package wget (if it exists already),
> **rpm -Fvh /mnt/iso/suse/i586/wget-1.10.2-78.i586.rpm**
12. Removing the RPM package wget,
> **rpm -e wget**
13. To list the configuration file of a package,
> **rpm -qc httpd**
14. To display the list of all recently installed packages,
> **rpm -qa –last**
15. To find out what dependencies httpd package has,
> **rpm -qR httpd**
16. To find out what dependencies an rpm file has,
> **rpm -qpR /mnt/iso/suse/i586/wget-1.10.2-78.i586.rpm**
17.  To display list of configuration files for a command,
> **rpm -qcf /usr/sbin/httpd**