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dop is a little tool allowing you to create aliases for commonly used directories.

Commands can be executed by running dop <command> but it is much easier to create symlinks for the commonly used commands. For example:

  $ dop dlist

can be replaced by

  $ ln -s dop dlist
  $ dlist

  dpush <key> [dir]  : save a directory under the given key
  dpop <key>         : remove the given key for a directory
  dlist              : show the list of saved directories
  dchange <key>      : changes to the directory specified by the key

Note that dchange is actually useless, because it will only change the directory in the spawned dop process, not your shell. More likely you want to use _dch with the alias specified at the top of the file. This will allow you to change the directory within your current shell.