How to utilize tar and untar over SSH in red hat linux

[Nitesha]

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Hi, I have installed red hat linux in my machine but as I am newer to this operating sysmte I don’t know about the feature and functioning about the operating system and have some doubt regarding that.

Actually the thing is like I have two linux server and I want to exercise tar over ssh to tar and untar the file. The server A uses IP 10.1.1.a there is directory “A” which contain files. The server B uses IP 10.1.1.b , and here also dir ”b” contain file .

So, in above case, how can I tar over ssh in such way that the file in directory “a”, server a can tar to server b ,directory “b” .

Please help me with the situation.

[Zhankana_n]

First of all let me tell you as I am not getting whatever you have mentioned in the problem sectioned but still as far as commands are concern I would like to tell you about them so that you can make use of them.

• ar
• basename
• cd
• chown
• cpio
• csh
• dirname
• ls
• mt
• pack
• pax
• setfacl
• umask
• zcat

[teena_pansare]

See I am hoping that you are asking about opening the tar files and untar it again, thus for that I would like to tell you about the command lines that actually uses.

For tar:

tar -pczf filename.tar.gz www/

for untar

tar xvfz filename.tar.gz

[Ekpah]

I am not sure about this but still as idea of tarring over ssh you can use the below mentioned command line:

Code:

ssh user@srcbox 'tar cf - srcpath' | tar xf - trgt

or simply you can have see another example as well.

To copy SOURCEDIR into DESTDIR

localhost% tar zcvf - SOURCEDIR | (cd DESTDIR; tar zxvf -)

[windows_user]

I am hoping that you must be thinking of actually copy whole trees from one location to another and for that There are basically 2 methods, PUSH & PULL. You can refer the below mentioned examples.

-------------Pushing a directory from local host to remote host

1. tar & ssh

1 - copy SOURCEDIR from localhost to remotehost over ssh. Untarring begins in /home/user1

localhost% tar zcvf - SOURCEDIR | ssh user1@remotehost tar zxvf -

2 - copy SOURCEDIR from localhost to remotehost over ssh. Untarring in DESTDIR
1

localhost% tar zcvf - SOURCEDIR | ssh user1@remotehost 'cd DESTDIR; tar zxvf - '

2
localhost% tar zcvf - SOURCEDIR | ssh user1@remotehost "(cd DESTDIR; tar zxvf -)"

3
localhost% tar zcvf - SOURCEDIR | ssh -l user1 remotehost 'cd DESTDIR ; tar zxvf -'

4
localhost% tar zcvf - SOURCEDIR | ssh user1@remotehost "cat > /DESTDIR/DESTFILE.tar.gz"


------------- Pulling a directory to localhost <— remotehost

copy SOURCEDIR to DESTDIR

1
localhost% ssh remotehost 'tar zcvf - SOURCEDIR' | tar zxvf -

2
localhost% ssh -n remotehost 'tar zcvf - SOURCEDIR' | tar zxvf -

3
localhost% ssh remotehost "( cd SOURCEDIR ; tar zcvf - SOURCEFILES ) " | tar zxvf -

[Nitesha]

Hey thanks for the suggestion, I have tried this and some of them works perfectly but some of them didn’t, why so?