[Serusers] About exec_dset()

Dear all: I want to change the content of request uri. I use this function ,exec_dset(), to change it. This is my configuration: if (!lookup("location")) { exec_dset("/usr/local/etc/openser/shell/sh1"); #sl_send_reply("404", "Not Found"); exit; }; shell scrip: sh1 #!/bin/sh num=200(a)xx.xx.xx.xx if [! -z "$num" ] then echo "$*" else echo "sip:$num" fi but it doesn't work. error message: ERROR:exec_str: no uri from /usr/local/etc/openser/shell/sh1 XX(a)xx.xx.xx..... Can somebody tell me what's wrong with my shell script. Thank you for your response chungyu 2007/06/4