Linux – /bin /sbin /usr/bin /dev /var /etc directories

The /bin directory contains executable files, commands used in single-user mode and commands required by system users  such as

  • ps – list of processes
  • ls – list of the contents of a directory
  • cp – copy files

Commands that are not essential for the system are placed in the /usr/bin directory

Essential binaries related to system are placed to /sbin, such as ifconfig and shutdown.

The /dev directory contains device nodes, pseudo-files, used by most hardware and software devices. It is empty on the disk when not mounted. All the entries are created by the udev system. Some nodes are

  • /dev/sda1 – first hard disk
  • /dev/dvd1 – first dvd

, <span>Linux – /bin /sbin /usr/bin /dev /var /etc directories</span>, KandZ


The /var directory contains files that their size changes like log files (/var/log) , print queues (/var/spool) and temporary files (/var/tmp).

The /etc directory contains system configuration files. There no binary files but there are some executable scripts. passwd, shadow and group are example files in /etc directory.

, <span>Linux – /bin /sbin /usr/bin /dev /var /etc directories</span>, KandZ

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