The
tar command stores and extract files from an archive file known as a tarfile.
Syntax :
tar <operation> [options]
A full list of tar options and more about the same can be refer from here (
http://www.tutorialspoint.com/unix_commands/tar.htm ).
In our case, the scenario is to
Convert a text file to tar file if the size exceeds 5KB So let us issue the below command from the Ubuntu terminal
tar rvf destinaiton.tar $(find sourcefile.txt -size +5k)
The options
r => append,
v => verbose,
f => file
"destinaiton.tar" is the final tar file that will be generated
The
find command plays an important role here.
It is used to search and locate list of files and directories based on conditions we specify for files that match the arguments. For more information please refer (
http://www.tecmint.com/35-practical-examples-of-linux-find-command/ ).
Now
find sourcefile.txt -size +5k indicates to find the "sourcefile.txt" in the current working directory, whose size is more than 5KB
Hope this helps