[GNU/Linux] Linux directory structure
There are various types of individual high level directories in linux such as /etc, /dev, /proc, /bin, /tmp, /var, /sbin etc. Read on to know more about the directory structure.
/bin - User Binaries
/etc - Configuration files
/dev - Device files
/var - Variable files
/sbin - System Binaries
/proc - Process informations
/tmp - System binaries
The commands used by all users in the system are located in /bin. This directory contains binary executable files. Commands like ls, grep, cp are all located here.
This directory contains configuration files required by all programs. It contains all startup and shutdown scripts used to start/stop individual programs. /etc/resolv.conf is an example for this.
This directory contains all device files. This contains USB or any devices that are connected to the system.
'var' refers to variable files. This directory contains system log files (/var/log). Packages and database in (/var/lib). Emails (/var/mail).
This directory also contains binary executable files but mainly the commands located in 'sbin' are used by system administrators. ifconfig, reboot, iptables etc are examples for this.
This directory contains information about system processes. The processes running with a particular PID is found in /proc/[PID].
This directory contains temporary files that are created by the users in the system. All files in this folder will be deleted when the system under goes a reboot process.