.pre.sh

   1 path_prepend() {
   2         local p
   3         for p in "$@" ; do
   4                 if [[ :${PATH}: != *:${p}:* ]] && [[ -d ${p} ]] ; then
   5                         PATH="${p}:${PATH}"
   6                 fi
   7         done
   8 }
   9 path_append() {
  10         local p
  11         for p in "$@" ; do
  12                 if [[ :${PATH}: != *:${p}:* ]] && [[ -d ${p} ]] ; then
  13                         PATH+=":${p}"
  14                 fi
  15         done
  16 }