TAR Command with examples

TAR is archiving utility in Linux. With tar command, multiple files and directories can be archived into a single file, with extension of that file is ".tar".

"gzip" and "bzip" compression techniques can be used with tar command.

 Syntax:

$ tar [options] [desired tar file name] [list of file and/or directories]
Examples for your reference

I need to create a tar file named umasarath from the directory_name folder. Below is the basic command to create a tar archive. 

$ tar cvf umasarath.tar directory_name/
Here cvf stands for 
c - create new archive file
v - verbosely list files
f - following is archive file name.


The above example tar cvf option, does not provide any compression. Inorder to use a gzip compression on the tar archive, use the z option as shown below.

$ tar cvzf umasarath.tar directory_name/

Here z stands for 
z - filter the archive through gzip

 Please Note: .tgz is same as .tar.gz









Comments

Post a Comment

Popular posts from this blog

[SOLVED] - RSYNC not executing via CRON

The below error was faced and tried for online answers, made my head to heat for couple of days and finally i was able to crack the solution for the below issue. umasarath@ubuntu:~$ tail -50 cron_alc.log Cronjob started for back-up files + rsync -v umasarath@xx.xx.xx.xx:/tmp/compressed_logfiles/*.zip /home/umasarath/archive/ Permission denied, please try again. Permission denied, please try again. Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). rsync: connection unexpectedly closed (0 bytes received so far) [Receiver] rsync error: unexplained error (code 255) at io.c(601) [Receiver=3.0.7] umasarath@ubuntu:~$ Please follow the below steps inorder to avoid the above error. My script contains the below code. umasarath@ubuntu:~$ cat transfer_files.sh #!/bin/sh set -xv echo "Cronjob started for back-up files" `date` /usr/bin/rsync -vv umasarath@xx.xx.xx.xx:/tmp/compressed_logfiles/*.zip /home/umasarath/archive/ echo "Cronjob ended for back-u...
Read more

RSYNC command without authentication - 8 simple steps

Initially, when i try to sync the files from remotehost to localhost, i have to execute manually by executing in command prompt. I thought of executing the command by shell script and then call this script from cronjob. When i do this, the script was asking for authentication which is seems no difference between manual effort and an automated one. In order to avoid this, the following steps will explain how to perform RSYNC from localhost to remote host without entering password. umasarath@localhost:~$ rsync -v umasarath@remotehost:/home/umasarath/test/* test/ umasarath@remotehost's password: test11.txt umasarath.txt sent 61 bytes received 144 bytes 82.00 bytes/sec total size is 18 speedup is 0.09 umasarath@localhost:~$ Verify that localhost and remotehost is running openSSH umasarath@local:~$ ssh -V OpenSSH_5.3p1 Debian-3ubuntu7, OpenSSL 0.9.8k 25 Mar 2009 umasarath@remote:~$ ssh -V OpenSSH_5.3p1 Debian-3ubuntu7, OpenSSL 0.9.8k 25 Mar 2009 Generate key-pair on the lo...
Read more

The javax.servlet Package

The javax.servlet package contains a number of interfaces and classes that establish the framework in which servlets operate. The most significant of these is Servlet. All servlets must implement this interface or extend a class that implements the interface Interface Description Servlet Declares life cycle methods for a servlet. ServletConfig Allows servlets to get initialization parameters ServletContext Enables servlets to log events and access information about their environment. ServletRequest Used to read data from a client request. ServletResponse Used to write data to a client response. The following table summarizes the core classes that are provided in the javax.servlet package: Class Description GenericServlet Implements the Servlet and ServletConfig interfaces. ServletInputStream Provides an input stream for reading requests from a client. ...
Read more