uniqpath

Package: WA2L/edrc 1.5.57
Section: Library Commands (3)
Updated: 05 August 2008
Index Return to Main Contents

 

NAME

uniqpath - remove duplicates in colon separated strings ($PATH)

 

SYNOPSIS

edrc/lib/uniqpath [ -h ]

uniqpath string

 

AVAILABILITY

WA2L/edrc

 

DESCRIPTION

The main purpose of uniqpath is to remove duplicates in a colon separated strings as known from the command path ( $PATH ) or manual path ( $MANPATH ).

The order of the elements remains, but duplicates are removed from the list.

Therefore ' uniqpath a:b:c:b:c ' returns a:b:c.

 

OPTIONS

-h
usage message.

string
colon separated string as known from the command path ( $PATH ).

 

ENVIRONMENT

-

 

EXIT STATUS

0
no error.

4
usage listed.

 

FILES

-

 

EXAMPLES

1) usage of uniqpath in a script

The following cut-out is from a Born shell script. The usage is to tidy up the command path: 

  :
  :

  PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/lbin:$PATH
  export PATH

  Scriptname=`basename $0`
  Scriptpath=`dirname $0`
  Basedir=`$Scriptpath/../lib/approot`

  :
  :

  PATH=`$Basedir/lib/uniqpath $Basedir/bin:$Basedir/lib:$PATH`
  export PATH

  :
  :

 

SEE ALSO

edrcintro(1), sh(1), ksh(1), bash(1)

 

NOTES

-

 

BUGS

-

 

AUTHOR

uniqpath was developed by Christian Walther. Send suggestions and bug reports to wa2l@users.sourceforge.net . 

 

COPYRIGHT

Copyright © 2008 Christian Walther

This is free software; see edrc/doc/COPYING for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 

Index

NAME
SYNOPSIS
AVAILABILITY
DESCRIPTION
OPTIONS
ENVIRONMENT
EXIT STATUS
FILES
EXAMPLES
SEE ALSO
NOTES
BUGS
AUTHOR
COPYRIGHT
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