How do I create a file of any given size on Linux?

It is possible to create files of arbitrary size on a linux machine using the dd command. Here is an example:

$ cd /tmp
$ dd if=/dev/zero of=bigfile bs=1024 count=1048576 

This will create a file of size 1024 * 1048576 bytes (or 1 GB). In this command

• if - input file
• of - output file or the file to be created
• bs - block size in bytes
• count - # of blocks of size bs

For more information of use of dd command see the dd man pages

tags: linux  command line  

links: digg this    del.icio.us    technorati