Re: Bash Path Duplications: An idea from zsh

[Steven W. Orr]

On Thu, 3 Jan 2002, Chet Ramey wrote:

=>> There has been considerable recent discussion on the redhat-list
=>> regarding path setting in Red Hat Linux and therefore in bash, their
=>> default shell.  The discussion centers around the common event of
=>> multiple instances of the same directory(s) within path entries, flowing
=>> in part from multiple invocations of bash startup files.  A common work
=>> around is conditional appendages to PATH, based on echo | grep tests.  Some
=>> discussants find this inelegant and seek a better way to do this.
=>
=>This is so trivial to do with shell functions that it's not worth
=>putting into the shell proper.  Look at examples/functions/pathfuncs
=>in the bash distribution for guidance.
=>
=>The `case' statement and the [[...]] conditional command are your friends.
=>There should be no need to resort to `echo | grep' tests.
Chet, I almost agree with you :-)

I have a program called envv written in perl which is used to edit the 
values of environment variables which are colon seperated lists. Very 
handy.

Write me if you're interested. :-)

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