Command Line Expansion The tilde

The tilde

  • Tilde (~)
  • May refer to your home directory
    $ cat ~/.bash_profile
  • May refer to another user’s home directory
    $ ls -rahul/public_html

Tilde Expansion

The tilde (~) expansion feature is borrowed from the C Shell and makes it easy to reference files and directories inside your or someone else’s home directory. The ~ character, called a tilde, expands to your own home directory, or, if followed by a user name, by that user’s home directory.

For example, the string ~/ .bash_profile means “the .bash_profile in my home directory”. An advantage is that you do not need to know sally’s home directory to reference a file within it, which is useful in environments where home directories exit in non-standard locations.

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