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BlueSkies
Asked: 2020-03-04 15:32:03 +0800 CST

The same string twice in the $PATH environmental variable

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When I run $PATH on my terminal in Ubuntu 18.04.3, it displays the following:

/home/ubuntu/bin:/home/ubuntu/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

The first part of $PATH (/home/ubuntu/bin) shows up twice. Why?

I have tried:

grep PATH= ~/.{bash_profile,profile,bashrc}

and got:

grep: /home/ubuntu/.bash_profile: No such file or directory
/home/ubuntu/.profile:    PATH="$HOME/bin:$PATH"
/home/ubuntu/.profile:    PATH="$HOME/.local/bin:$PATH"
/home/ubuntu/.bashrc:export PATH="$HOME/bin:$PATH"
command-line bash bashrc grep .profile

2 Answers

  1. Best Answer

    Removing the export PATH="$HOME/bin:$PATH" directive from the /home/ubuntu/.bashrc file fixed the problem, since the PATH="$HOME/bin:$PATH" is already covered by PATH="$HOME/bin:$PATH" in the /home/ubuntu/.profile file.

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  2. I use Stephen Collyer's bash_path_funcs, described in Linux Journal way back in 2000, but the links no longer work.

    This link works today (2020-Mar-03):

    http://web.archive.org/web/20061213023831/http://www.netspinner.co.uk/Resources.html

    The addpath function adds an entry to a path only if it is not there in the first place. delpath -n deletes all non-existent directories from a path, and uniqpath deletes duplicate entries.. ~ ~

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