One Linux command per day 4

Linux System shutdown command

Shutdown-h Time Init 0 poweroff

Linux System logoff command

Logout or a shortcut key ctrl+d

Linux System restart command

Reboot

Linux Package Management

1. Check whether the package is installed #rpm-Q package Name

Options:-Q queries (query)

View all installed RPM packages #rpm-qa

Option:-A All

2. Query Package details #rpm-QI package Name

Option:-I query software information (information)

-P Query No package information installed

3, query package file installation location #rpm-QL Package Name

Options:-l lists (list)

4, the query system files belong to which RPM package #rpm-QF System file name

Option:-F Query which package the system file belongs to (file)

5, the dependency of the query package #rpm-R Package Name

Option:-R Query Package dependencies (requires)

-P Query No package information installed

One Linux command per day 4