Novell SuSE Linux Professional 9.2 Upgrade [Strong Encryption 128 Bit] 00662644457260 Manuel D’Utilisation
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-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
compressed using
gzip
, the ending is
.tgz
or
.tar.gz
. If it was com-
pressed using
bzip2
, the ending is
.tar.bz2
. Application examples can
be found in Archives and Data Compression on page 263.
locate pattern(s)
The
locate
command can find in which directory a
specified file is located. If desired, use wild cards to specify file names. The
program is very speedy, as 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 gen-
erated by
program is very speedy, as 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 gen-
erated by
root
with
updatedb
.
updatedb [options(s)]
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 &
).
find [option(s)]
With
find
, search for a file in a given directory. The first
argument specifies the directory in which to start the search. The option
-name
must be followed by a search string, which may also include wild
cards. Unlike
locate
, which uses a database,
find
scans the actual direc-
tory.
Commands to Access File Contents
cat [option(s)] file(s)
The
cat
command displays the contents of a file,
printing the entire contents to the screen without interruption.
-n
Numbers the output on the left margin
less [option(s)] file(s)
This command can be used to browse the con-
tents of the specified file. Scroll half a screen page up or down with
PgUp
and
PgDn
or a full screen page down with
Space
. Jump to the beginning
or end of a file using
Home
and
End
. Press
Q
to exit the program.
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21.3. Important Linux Commands