Page 139 - DCAP602_NETWORK_OPERATING_SYSTEMS_I

Unit 7: Installing Software

The -q switch is used to query packages. By itself, -q will give you the version of a specified notes
package. If you want to see which version of the tin newsreader you have on your system, you
would issue the following command:

# rpm -q tin
tin-1.22-12
If you want to see which installed package owns a file, use the -f modifier. Here, we want to see
which package owns /etc/passwd.

# rpm -q -f /etc/passwd
setup-1.9.2-1
Likewise, if you want to generate a list of files belonging to a certain package, use the -l
modifier:
# rpm -q -l tin
/usr/bin/rtin
/usr/bin/tin
/usr/doc/tin-1.22

/usr/doc/tin-1.22/CHANGES
/usr/doc/tin-1.22/FTP
/usr/doc/tin-1.22/HACKERS
/usr/doc/tin-1.22/INSTALL
/usr/doc/tin-1.22/INSTALL.NNTP
/usr/doc/tin-1.22/MANIFEST
/usr/doc/tin-1.22/README
/usr/doc/tin-1.22/TODO
/usr/man/man1/tin.1
One of the most common modifiers to -q is -a, query all packages on your system. This system has
350 packages installed, but here’s a truncated output:

# rpm -q -a
setup-1.9.2-1
filesystem-1.3.2-3
basesystem-4.9-3
ldconfig-1.9.5-8
...
code_crusader-1.1.0-1
lyx-0.11.53-1
xforms-0.86-1
wine-981211-1
Listing 1
For even more information about a package, use the -i (information) modifier:

# rpm -q -i passwd

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