--- /dev/null
+#!/bin/sh
+
+[ -e bin.sys ] || mkdir bin.sys
+cd bin.sys
+
+while read d
+do
+ if [ -x $d/$1 ]
+ then
+ while [ $# -gt 0 ]
+ do
+ rm -f ./$1
+ ln -s $d/$1 .
+ shift
+ done
+ fi
+done <<-HERE
+ /bin
+ /usr/bin
+ /usr/local/bin
+ /usr/lib/postgresql/10/bin
+ /usr/lib/postgresql/9/bin
+HERE
+