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compress directories with .tar extension

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# 1  
Old 03-20-2009
compress directories with .tar extension
hi guys..

Since am a bit new to shell scripting, can anyone help me with this problem please.. i've been struggling with it since 2 days. Smilie

I have a directory lets say myFolder and within it I have sub directories let say myFolder1.tar, myFolder2, myFolder3, etc. I need to write a shell script to check the extension of the sub directories and if they are not compress with the .tar extension compress them. At the end I should have myFolder1.tar, myFolder2.tar and myFolder3.tar.
# 2  
Old 03-20-2009
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

# 3  
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
# 4  
Old 03-20-2009
Quote:
Originally Posted by kanexxx
hi guys..

Since am a bit new to shell scripting, can anyone help me with this problem please.. i've been struggling with it since 2 days. Smilie

I have a directory lets say myFolder and within it I have sub directories let say myFolder1.tar, myFolder2, myFolder3, etc. I need to write a shell script to check the extension of the sub directories and if they are not compress with the .tar extension compress them. At the end I should have myFolder1.tar, myFolder2.tar and myFolder3.tar.
Hello there,

The following KornShell script does the job

Code:
#!/bin/ksh

print -n "Enter the directory path: "
read DIRECTORY

if [[ ! -d $DIRECTORY ]]
then
    print -u2 "$DIRECTORY : no such directory"
    exit 2
fi

for ITEM in $(ls $DIRECTORY)
do
    if [[ -d $ITEM ]]
    then
        if [[ ! $ITEM = *.tar ]]
        then
            tar -cvf $ITEM.tar ./$ITEM
        fi
    fi
done

Regards,
Smilie
# 5  
Old 03-20-2009
Quote:
Originally Posted by dariyoosh
Hello there,

The following KornShell script does the job

Code:
#!/bin/ksh

print -n "Enter the directory path: "
read DIRECTORY

if [[ ! -d $DIRECTORY ]]
then
    print -u2 "$DIRECTORY : no such directory"
    exit 2
fi

for ITEM in $(ls $DIRECTORY)
do
    if [[ -d $ITEM ]]
    then
        if [[ ! $ITEM = *.tar ]]
        then
            tar -cvf $ITEM.tar ./$ITEM
        fi
    fi
done

Regards,
Smilie
Thanks for your reply.. but i foget to specify that i need the bash shell script. Smilie I'm not so familiar with kornshell script.

If the nave the bash script please post it
Thanks
# 6  
Old 03-20-2009
Quote:
Originally Posted by kanexxx
Thanks for your reply.. but i foget to specify that i need the bash shell script. Smilie I'm not so familiar with kornshell script.

If the nave the bash script please post it
Thanks
Code:
#!/bin/bash

DIRECTORY="."
echo -n "Enter the directory path: "
read DIRECTORY

if [[ ! -d $DIRECTORY ]]
then
    echo "$DIRECTORY : no such directory"
    exit 2
fi

for ITEM in $(ls $DIRECTORY)
do
    if [[ -d $ITEM ]]
    then
        if [[ ! $ITEM = *.tar ]]
        then
            tar -cvf $ITEM.tar ./$ITEM
        fi
    fi
done

# 7  
Old 03-20-2009
Quote:
Originally Posted by dariyoosh
Code:
#!/bin/bash

DIRECTORY="."
echo -n "Enter the directory path: "
read DIRECTORY

if [[ ! -d $DIRECTORY ]]
then
    echo "$DIRECTORY : no such directory"
    exit 2
fi

for ITEM in $(ls $DIRECTORY)
do
    if [[ -d $ITEM ]]
    then
        if [[ ! $ITEM = *.tar ]]
        then
            tar -cvf $ITEM.tar ./$ITEM
        fi
    fi
done

When i run your script am getting {}.tar in my main directory myfolder. Smilie
I want to get myfolder.tar myfolder2.tar myfolder3.tar
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