Novell LINUX ENTERPRISE DESKTOP 10 SP2 - DEPLOYMENT GUIDE 08-05-2008 Deployment Manual page 387

-t
Outputs the contents of an archive
-u
Adds files, but only if they are newer than the files already contained in the
archive
-x
Unpacks files from an archive (extraction)
-z
Packs the resulting archive with gzip
-j
Compresses the resulting archive with bzip2
-v
Lists files processed
The archive files created by tar end with .tar. If the tar archive was also com-
pressed using gzip, the ending is .tgz or .tar.gz. If it was compressed using
bzip2, the ending is .tar.bz2.
locate patterns
This command is only available if you have installed the findutils-locate
package. The locate command can find in which directory a specified file is lo-
cated. If desired, use wild cards to specify filenames. The program is very speedy,
because it uses a database specifically created for the purpose (rather than searching
through the entire file system). This very fact, however, also results in a major
drawback: locate is unable to find any files created after the latest update of its
database. The database can be generated by root with updatedb.
updatedb [options]
This command performs an update of the database used by locate. To include
files in all existing directories, run the program as root. It also makes sense to
place it in the background by appending an ampersand (&), so you can immediately
continue working on the same command line (updatedb &). This command
usually runs as a daily cron job (see cron.daily).
Working with the Shell 371