Create a dummy file in Linux.

This is a one liner to create a dummy file in Linux/Unix for testing purpose:

 dd if=/dev/zero of=dummyfile1.txt bs=1234567801 count=1

-rw-r--r-- 1 root root 1234567801 Feb 25 05:16 dummyfile1.txt


[root@RHEL5 ~]# du -sh dummyfile1.txt
1.2G    dummyfile1.txt