# path-manipulating shell functions

function lspath {
    echo $PATH | tr ':' '\n'
}
 
function makepath {
    unset NEW_PATH
    while read PATHEL; do
        NEW_PATH="$NEW_PATH:$PATHEL"
    done
    echo ${NEW_PATH#:}
}
 
function uniqpath {
    PATH=`lspath | awk '{seen[$0]++; if (seen[$0]==1){print}}' | makep
+ath`
}
 
function cleanpath {
    uniqpath
    PATH=`lspath | sed -e 's|\/$||' -ne '/./p' | makepath`
}
 
function addpath {
    PATH=$1:$PATH
    cleanpath
}
 
function appendpath {
    PATH=$PATH:$1
    cleanpath
}
 
function delpath {
    PATH=`lspath | grep -v "^$1\$" | makepath`
}
 
function editpath {
    TEMP=`mktemp "/tmp/${FUNCNAME}.XXXXXX"`
    lspath > $TEMP
    ${EDITOR:-vi} $TEMP
    PATH=`makepath < $TEMP`
    rm -f $TEMP
}
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