Directories

These are special category of files which holds a list of other files. Thus there is a one-to-one mapping of inodes to disk Blocks; there can be a many-to-one mapping from a directory entry to an inode. Whenever viewing  a  directory  listing  using  the  ls -l command,  the  directories  can  be  recognized  through  their permissions beginning with the d character. An ls -l on a directory will look as display follows:

drwx---    2 Krishen         unix     512 May 12 13:08 public_html