The jar
(java archive) command is similar to the tar
command, but compresses the resulting file in the same step. It is a
Java™ application that combines multiple files into a single jar (Java archive) file. It is also a general purpose archiving and
compression tool, based on ZIP and the ZLIB compression format. The jar
command was originally created for Java programmers to download
multiple files with one request, rather than having to issue a
download request for each separate file. The jar
command is standard with the Solaris operating system, but is
available on any system that has Java virtual machine (JVM) installed.
The syntax for the jar tool is almost identical to the syntax for the tar
command. Figure
shows the options available with the jar
command.
It is not necessary to use a hyphen (-)
before options when issuing the jar command. Figure
provides an example of the use of the jar command to archive
and compress all directories and files in the /home/user2
directory.
 |
 |
Interactive
Media Activity
(Flash,
95 kB) |
| |
Archiving
and Compressing Files with jar
In
this media activity, you are logged in as user2
and your current working directory is:
/home/user2. Refer to the Class File Tree
Structure by clicking the 'tree' button located on
the Menu Bar and type the commands that would
accomplish the requested objectives.
Note: Be sure to press enter after each one. Click
on step 1 to begin. |
|
|
|
 |
 |
Lab
Activity
(Adobe Acrobat
Reader, 63 kB) |
| |
Command
Line Archive Tools
In this lab,
you will work with the Tape Archive (tar) and Java Archive
(jar) utilities to perform backups of data as well as
restoring data from backups. We will cover the UNIX file
compression utility and you will use tar and compress to
back up and restore your home directory. |
|
|
|
|