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Inspired by a tool I can not find anymore on the internet: utok 1.5. I use it to clean up path settings in large shell script configuration setups.

Project description

Inspired by a tool I can not find anymore on the internet: utok 1.5. I use it to clean up path settings in large shell script configuration setups.

utok has the following options:

usage: utok [-h] [--delimiter DELIMITER] [--delete-list DELETE_LIST] [--version] tokens [tokens ...]

positional arguments:
  tokens

optional arguments:
  -h, --help            show this help message and exit
  --delimiter DELIMITER, -s DELIMITER
                        Allows one to change the delimiter. If you use csh you might want to set your path with something like: set path = (`utok -s \ /usr/local/bin $path`) (default:
                        :)
  --delete-list DELETE_LIST, -d DELETE_LIST
                        Allows one to remove tokens from a list, to remove /usr/sbin and . from a path in Bourne Shell one might use: PATH=`utok $PATH -d .:/usr/sbin` (default: None)
  --version, -V         show program's version number and exit

Availability

The latest version should be available at my GitLab repository, the package is avaliable at pypi via pip install pyutok.

Description

utok, Unique TOKens, takes a list of arguments with delimiters and reject all duplicate entries. Here is a example using MANPATH:

$ echo $MANPATH
/usr/man:/usr/local/man
$ MANPATH=`utok /home/local/man /usr/local/man $MANPATH /usr/openwin/man`
$ export MANPATH
$ echo $MANPATH
/home/local/man:/usr/local/man:/usr/man:/usr/openwin/man

Even though /usr/local/man was included a second time it is only in the MANPATH once, though it is now before the /usr/man entry instead of after it.

This version adds the -d option to remove tokens. To remove . from the PATH one would do the following:

$ echo $PATH
/usr/local/bin:.:/usr/bin:/usr/sbin
$ PATH=`utok -d .: $PATH`
$ echo PATH
/usr/local/bin:/usr/bin:/usr/sbin
$ export PATH

Requested Features

  • Have a way to to push an element further back in the path. A work around of this would be be something like:

    utok `utok a:b:c:d -d b` b
    

    which returns: a:c:d:b

  • Have a way to include multiple -s options.

Feedback

Comments or bug reports/fixes go to Berthold Höllmann <berhoel@gmail.com>.

Copyright © 2020 Berthold Höllmann <berhoel@gmail.com>

Original C version: Copyright © 1998 Sven Heinicke <sven@zen.org>

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