Modify or disable Mac OS X Lion’s file locking feature

Whenever you try to modify a file that you have not touched in over two weeks, you’ll receive the following message:

The file [File Name] is locked because you haven’t made any changes to it recently.

Secure copying files via SSH

How to, from the terminal, securely transfer data between a local host and a remote host or between two remote hosts.

Convert many disk image formats to ISO9660 from Terminal

There are many formats of disk images which is not possible to mount with standard Linux tools. But, with “Iat” tool, we can convert it to ISO format and then mount it with mount command.

Find and delete the zero size files and empty directories

How to, in the terminal, using the find utility, find and optionally delete all zero bytes/size/length files and empty directories in the specified directory including subdirectories.

Find and remove duplicate files from the terminal

If you have a lot of media files (photo, music etc), then most likely you also have a lot of duplicate files. In this article I’ll show you how to find and remove duplicate files, from the terminal, by using fdupes utility.