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Top Forums Shell Programming and Scripting compress directories with .tar extension Post 302299457 by kanexxx on Friday 20th of March 2009 07:01:27 AM
Old 03-20-2009
Quote:
Originally Posted by zaxxon
tar is no compression utility - it is an archiving tool. Some tars have the option -z for compression but they use gzip/gunzip to do this.

An detailed example for your case:
Code:
## What we have at start
root@somehost:/data/tmp/testfeld> ll myFolder
insgesamt 24
drwxr-xr-x 6 root root  4096 2009-03-20 10:40 .
drwxr-xr-x 4 isau users 4096 2009-03-20 10:37 ..
drwxr-xr-x 2 root root  4096 2009-03-20 10:38 myFolder1
drwxr-xr-x 2 root root  4096 2009-03-20 10:40 myFolder142
drwxr-xr-x 2 root root  4096 2009-03-20 10:38 myFolder2
-rw-r--r-- 1 root root     0 2009-03-20 10:39 myFolder3.tar
drwxr-xr-x 2 root root  4096 2009-03-20 10:38 myFolder4

## Find directories in myFolder since an already tar'ed directory is a file now
root@somehost:/data/tmp/testfeld/myFolder> find . -type d -name "myFolder*" -print
./myFolder2
./myFolder142
./myFolder4
./myFolder1

## Now tar all we have found
root@somehost:/data/tmp/testfeld/myFolder> find . -type d -name "myFolder*" -exec tar cvf {}.tar {} \;
./myFolder2/
./myFolder142/
./myFolder4/
./myFolder1/

## Let's check what has happened
root@somehost:/data/tmp/testfeld/myFolder> ll
insgesamt 72
drwxr-xr-x 6 root root   4096 2009-03-20 10:44 .
drwxr-xr-x 4 isau users  4096 2009-03-20 10:37 ..
drwxr-xr-x 2 root root   4096 2009-03-20 10:38 myFolder1
drwxr-xr-x 2 root root   4096 2009-03-20 10:40 myFolder142
-rw-r--r-- 1 root root  10240 2009-03-20 10:44 myFolder142.tar
-rw-r--r-- 1 root root  10240 2009-03-20 10:44 myFolder1.tar
drwxr-xr-x 2 root root   4096 2009-03-20 10:38 myFolder2
-rw-r--r-- 1 root root  10240 2009-03-20 10:44 myFolder2.tar
-rw-r--r-- 1 root root      0 2009-03-20 10:39 myFolder3.tar
drwxr-xr-x 2 root root   4096 2009-03-20 10:38 myFolder4
-rw-r--r-- 1 root root  10240 2009-03-20 10:44 myFolder4.tar


Thanks for your quick reply... But when i try to execute this command
find . -type d -name "my*" -exec tar cvf {}.tar \;

I get the following error Smilie

tar: Cowardly refusing to create an empty archive
 

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rpm2cpio(1)                                                        User Commands                                                       rpm2cpio(1)

NAME
rpm2cpio - convert Red Hat Package (RPM) to cpio archive SYNOPSIS
rpm2cpio [file.rpm] DESCRIPTION
The rpm2cpio utility converts the .rpm file specified as its sole argument to a cpio archive on standard output. (See NOTES.) If no argu- ment is given, an rpm stream is read from standard input. In both cases, rpm2cpio will fail and print a usage message if the standard out- put is a terminal. Therefore, the output is usually redirected to a file or piped through the cpio(1) utility. EXAMPLES
Example 1: Converting an rpm file example% rpm2cpio Device3Dfx-1.1-2.src.rpm | cpio -itv CPIO archive found! -rw-r--r-- 1 root root 2635 Sep 13 16:39 1998, 3dfx.gif -rw-r--r-- 1 root root 11339 Sep 27 16:03 1998, Dev3Dfx.tar.gz -rw-r--r-- 1 root root 1387 Sep 27 16:04 1998, Device3Dfx-1.1-2.spec 31 blocks Example 2: Converting from standard input example% rpm2cpio < Device3Dfx-1.1-2.src.rpm | cpio -itv CPIO archive found! -rw-r--r-- 1 root root 2635 Sep 13 16:39 1998, 3dfx.gif -rw-r--r-- 1 root root 11339 Sep 27 16:03 1998, Dev3Dfx.tar.gz -rw-r--r-- 1 root root 1387 Sep 27 16:04 1998, Device3Dfx-1.1-2.spec 31 blocks ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWrpm | +-----------------------------+-----------------------------+ SEE ALSO
cpio(1), attributes(5) NOTES
rpm2cpio handles versions 3 and 4 RPMs. SunOS 5.10 20 Aug 2001 rpm2cpio(1)
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