pathmunge

pathmunge

function pathmunge {
    if echo $PATH | /usr/bin/egrep -q "(^|:)$1($|:)";then
        a=${1//\//\\\/}
        PATH=$(echo $PATH|/usr/bin/sed -e "s/\([:^]*\)$a\([$:]*\)/\1\2/g")
        PATH=$(echo $PATH|/usr/bin/sed -e 's/::/:/g'|/usr/bin/sed -e 's/^://g'|/usr/bin/sed -e 's/:$//g')
    fi
    if [ "$2" = "after" ];then
        PATH=$PATH:$1
    else
        PATH=$1:$PATH
    fi
    export PATH
}