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#### 1.3.5.2 A Sample Command Description

Command descriptions have a format similar to function descriptions, except that the word ‘Function’ is replaced by ‘Command’. Commands are functions that may be called without surrounding their arguments in parentheses. For example, here is the description for Octave’s `cd` command:

Command: cd dir
Command: chdir dir

  Change the current working directory to dir. For example, `cd ~/octave` changes the current working directory to `~/octave`. If the directory does not exist, an error message is printed and the working directory is not changed.