Linux rpm commands

Following are the rpm commands I regularly use on RHEL and variants:

Command	Description	Example
rpm -qa	List all installed rpms	rpm -qa | grep kernel
rpm -qlm <rpm file> or rpm -qpl <rpm file>	List the files contained in the .rpm file
rpm -ivh <rpm file>	Check for dependency then install rpm
rpm -Uvh <rpm file>	Check for dependency then update package
rpm2cpio <rpm file> | cpio -idmv <leave empty for all or specify specific files in the rpm>	Extract files contained in the rpm (without install) into current directory

Missing cron.d in sysstat rpm install

This note is for RHEL/OEL or other similar distributions.

When rpm install for sysstat package complains of missing /etc/cron.d, while cron.d suggest missing cron package, the actual missing package is vixie-cron.

rpm -Ivh sysstat*.rpm
- dependency fails due to missing /etc/cron.d

rpm -qa|grep cron
- following should be installed, otherwise install these first:

• crontabs-...
• vixie-cron-...
• anacron-...