Hi! In Busybox 1.2.1 the following shell script working fine : #cat test.sh !/bin/sh HTTPD_PID=$(pidof httpd) echo $HTTPD_PID #test.sh 678 # In Busybox 1.2.2 #test.sh # (just a new line printed!) I have copied the 1.2.1 config into 1.2.2 folder and I have compiled the busybox 1.2.2 after that. Best Zsolt