While on the PATH manipulation subject, I find the following function
handy when using ksh. It eliminates duplicates in a PATH style string.
This is useful when one has a lot of things like:
export PATH="$PATH;/some/new/stuff"
These tend to accumulate a lot of duplicate entries which can be eliminated
using this function by:
RemoveDups "$PATH"
export PATH="$_RemoveDups"
Sorry about the formatting ... the cut-n-paste clobbers the tabs characters.
==================================================
# RemoveDups( PATH )
#
# This function will remove all duplicate entries in the path
# specification passed and return the result in _RemoveDups.
#
# Parameters: PATH The path specification
#
# Returns: _RemoveDups Updated PATH (with duplicates removed)
#
function RemoveDups
{
typeset _IFS=$IFS # Save this
typeset p
typeset p1
typeset _PATH="$1"
_RemoveDups="" # Return value
for p in $_PATH
do
# There has got to be an easier way to test for duplicates,
# but lacking a "unique" or a "test" that can do string
# searches I'm stuck for the moment with this:
for p1 in $_RemoveDups
do
if [ "$p" = "$p1" ]
then
p=
break
fi
done
if [ "$p" != "" ]
then
if [ -d $p ]
then
_RemoveDups=${_RemoveDups#:}:$p
fi
fi
done
IFS=$_IFS
} # RemoveDups()
Mike McNally wrote:
> What I've always done is keep a little script around that
> constructs the path from a more easily edited list. When
> you're doing a lot of development against some sort of
> application framework(s), your path tends to get kinda
> nasty.
>
> So you put a script in your home directory (or your
> $HOME/bin.sh or wherever you like) called something like
> GETPATH. It should look something like this:
>
> #!/bin/sh
>
> pathdirs='
> $HOME/bin.sh
> $HOME/bin
> /usr/local/bin
> /usr/bin
> /usr/sbin
> /bin
> /sbin
> /what/ever/you/want
> '
>
> set $pd
> PATHSTR=$1
> shift
> for pd in "$@"; do
> PATHSTR="$PATHSTR:$pd"
> done
>
> echo $PATHSTR
> #end
>
> You can then run that script from a little shell function or alias
> or whatever. I just find it a lot easier to edit the vertical list
> of directories than a big wad of colon-separated pathnames.
>
> -----Original Message-----
> From: Jake McHenry
> To: redhat
> Sent: 5/7/00 9:10 AM
> Subject: Re: How do I edit my PATH?
>
> Your path environment is set in your *.profile located in each users
> directory. just edit this file and somewhere you should see PATH=
> just add to this whatever you want
>
> jake
>
> On Sun, 7 May 2000, John P. Verel wrote:
>
> > I'm running Red Hat 6.2 I want to edit my path environment and am
> > unclear where to go to do it, unable to find appropriate documentation
> > on this. Can someone please advise? Thank you.
> >
> > John
> >
> >
> > --
> > To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe"
> > as the Subject.
> >
> >
>
> Jake McHenry
> [EMAIL PROTECTED]
>
> --
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> as the Subject.
>
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