Programmer's Wiki

Unix is an operating system that has been around for a long time. The most popular Unix clone is Linux.

Unix Philosophy[]

an important part of the unix philosophy is that tools should be built to perform one basic task well. Complex tasks can then be solved by joining those simple tools together.

A few Unix commands[]


  • ls - displays items in the current directory.
  • cd - moves to the directory specified in its arguments.
  • .. - previous directory.
  • . - current directory.
  • ~/ - home directory.
  • something* - Filename completion.

Dangerous commands[]

Fork bomb in a Unix shell - causes system to 'freeze', due to it being a wabbit:

   :(){ :|: & }; :

Erase whole system, and make it crash:

   sudo rm -rf

See Also[]

External links[]