--- a/.env.bash	Wed Jun 16 13:39:23 2021 +0300
+++ b/.env.bash	Wed Jun 16 14:48:32 2021 +0300
@@ -22,26 +22,27 @@
 # Easy cd to often used dirs.
 export CDPATH=.:$HOME:$HOME/devel:$HOME/my
 
-function my_path_prune() {
+my_path_prune() {
   if [[ :$1: =~ (.*):$2:(.*) ]]; then
     local left=${BASH_REMATCH[1]}
     local right=${BASH_REMATCH[2]}
     [[ ${left:0:1} = : ]] && left=${left:1}
     [[ ${right: -1} = : ]] && right=${right:0: -1}
     if [[ -z $left ]]; then
-      echo "$right"
+      my_path_prune=$right
     elif [[ -z $right ]]; then
-      echo "$left"
+      my_path_prune=$left
     else
-      echo "$left:$right"
+      my_path_prune=$left:$right
     fi
   else
-    echo "$1"
+    my_path_prune=$1
   fi
 }
 
-function my_path_preappend() {
-  PATH=$1:$(my_prune_path "$PATH" $1)
+my_path_preappend() {
+  my_path_prune "$PATH" "$1"
+  PATH=$1:$my_path_prune
 }
 
 # For my "cygrun.exe" wrapper to work it should be behind shebang scripts in the PATH.
@@ -54,6 +55,9 @@
 my_path_preappend /usr/sbin
 my_path_preappend /sbin
 export PATH
+unset -f my_path_preappend
+unset -f my_path_prune
+unset -v my_path_prune
 
 if [[ -z $LD_LIBRARY_PATH ]]; then
   LD_LIBRARY_PATH=$HOME/usr/lib