NAME

App::pathed - munge the Bash PATH environment variable

SYNOPSIS

$ PATH=$(pathed --unique --delete rbenv)
$ PATH=$(pathed --append /home/my/bin -a /some/other/bin)
$ PATH=$(pathed --prepend /home/my/bin -p /some/other/bin)
$ for i in $(pathed --split); do ...; done
$ pathed --check
$ pathed --man
$ pathed -u --var PERL5LIB
$ pathed -u $PERL5LIB

DESCRIPTION

The Bash PATH environment variable contains a colon-separated list of paths. pathed - "path editor" - can split the path, append, prepend or remove elements, remove duplicates and reassemble it.

The result is then printed so you can assign it to the PATH variable. If --split is used, each path element is printed on a separate line, so you can iterate over them, for example.

The path elements can also be checked with --check to make sure that the indicated directories exist and are readable.

But pathed isn't just for PATH variable. You can specify an environment variable to use with the --var option, or just pass a value to be used directly after the options.

The following command-line options are supported:

• --append, -a <path>

  Appends the given path to the list of path elements. This option can be specified several times; the paths are appended in the given order.

• --prepend, -p <path>

  Prepends the given path to the list of path elements. This option can be specified several times; the paths are prepended in the given order. For example:

    $ pathed -p first -p second -p third
  

  will result in third:second:first:$PATH.

• --delete, -d <substr>

  Deletes those path elements which contain the given substring. This option can be specified several times; the path elements are deleted in the given order.

  When options are mixed, --append is processed first, then --prepend, then --delete.

• --unique, -u

  Removes duplicate path elements.

• --split, -s

  Prints each path element on its own line. If this option is not specified, the path elements are printed on one line, joined by colons, like you would normally specify the PATH variable.

• --check, -c

  Checks whether each path element is a readable directory and prints warnings if necessary. Warnings are printed only once per path element, even if that element occurs several times in PATH.

  When --check is used, the path is not printed. --check and --split are mutually exclusive.

• --var, -v <variable>

  Use the indiated environment variable.

• --help, -h

  Prints the synopsis.

• --man

  Prints the whole documentation.

WHY pathed?

The initial motivation for writing pathed came when I tried to install vim with homebrew while rbenv was active. vim wanted to be compiled with the system ruby, so I was looking for a quick way to remove rbenv from the PATH:

PATH=$(pathed -d rbenv) brew install vim

AUTHORS

The following person is the authors of all the files provided in this distribution unless explicitly noted otherwise.

Marcel Gruenauer marcel@cpan.org, http://marcelgruenauer.com

COPYRIGHT AND LICENSE

The following copyright notice applies to all the files provided in this distribution, including binary files, unless explicitly noted otherwise.

This software is copyright (c) 2013 by Marcel Gruenauer.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.