Re: remove paths

[MrEye]

Thank you.

"Paul Jarc" <prj@po.cwru.edu> wrote in message
m3ofqg91aq.fsf@multivac.cwru.edu">news:m3ofqg91aq.fsf@multivac.cwru.edu...
> "MrEye" <notell@hate_spam.com> writes:
> > How do you remove a directory path from the $PATH variable?
>
> With effort.  I use this function to remove duplicate entries from
> PATH and similar variables; season to taste.
>
> function cleanpath {
>   local var="${1:-PATH}" oldpath newpath=: entry
>   oldpath="${!var}:"
>   while [ -n "$oldpath" ]; do
>     entry="${oldpath%%:*}"
>     oldpath="${oldpath#*:}"
>     [ "${entry:0:1}" = / ] && [ -n "${newpath##*:$entry:*}" ] &&
>       [ -d "$entry" ] && newpath="$newpath$entry:"
>   done
>   newpath="${newpath#:}"
>   eval "$var"'="${newpath%:}"'
> }
>
>
> paul