Investigating a Package

Sometimes you want to learn about a package. You might want to know what it does before you install it, find a list of files it contains before or after it's installed, or learn to what package a file on your computer belongs. You can do all of this and more with the -q operation, which takes several different options, as detailed in Table 11.2. For instance, you might issue commands like this to learn more about a specific file that you've found on your system:

Name : xv Relocations: (not relocateable)

Version :3.10a Vendor: Red Hat Software

Release : 15 Build Date: Tue 07 Sep 1999 03:27:30 PM EDT

Install date: Mon 13 Jan 2003 04:05:58 PM EST Build Host:

Group : Amusements/Graphics Source RPM: xv-3.10a-15.src.rpm

Size : 4647951 License: Shareware

Signature : DSA/SHA1, Thu 23 Sep 1999 12:53:03 PM EDT, Key ID 219180cddb42a60e

Packager : Red Hat Software <>


Summary : An X based image file viewer and manipulator.

Description :

Xv is an image display and manipulation utility for the X Window System. Xv can display GIF, JPEG, TIFF, PBM, PPM, X11 bitmap, Utah Raster Toolkit RLE, PDS/VICAR, Sun Rasterfile, BMP, PCX, IRIS RGB, XPM, Targa, XWD, PostScript(TM) and PM format image files. Xv is also capable of image manipulation like cropping, expanding, taking screenshots, etc.

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