Unis System Resources in directory: /usr

The /usr directory usually contains the largest share of data. It is also called secondary hierarchy as it contains binaries, libraries, documentation for all the user applications.

Listing Directories in it:

$ ls /usr

We will explain some of the /usr sub-directories:

/usr/bin
/usr/include
/usr/lib
/usr/share
/usr/local
/usr/src

Unix System Resource – /usr/bin

This system /usr/bin directory contains non-essential binary commands for all users. If you can’t find a command in ‘/bin’, search it in ‘/usr/bin’. It contains a lot of commands.

Take a quick look in the /usr/bin directory!

$ ls /usr/bin

Unix System Resource – /usr/include

The Linux /usr/include directory contains standard include files for C.

Take a quick look in the /usr/include directory

$ ls /usr/include

Unis System Resource – /usr/lib

‘/usr/lib’ directory contains libraries that are not directly execute by the users. It contains binaries for the ‘/usr/bin’ and ‘/usr/sbin’.

Take a quick look in the /usr/lib directory:

$ ls /usr/lib

Unix System Resource – /usr/share

The ‘/usr/share’ directory contains architecture independent share data.

$ ls /usr/share

Unix System Resource – /usr/local

‘/usr/local’ directory is used to install software locally. It contains all the user programs that you install from the repository.

$ ls /usr/local

Unix System Resource – /usr/src

The term ‘src’ is short for source. It is used to store source codes, like kernel source codes with its header files.

$ls /usr/local