Hello team, I am stuck with exec module. Need to run a script with radius exec module. I have defined this script in sites-enabled/default file as below get_streaming_data_usage := `/scripts/get_streaming_data_usage.sh %{Framed-IP-Address}` get_streaming_data_usage.sh file contains #/bin/bash #get the framed IP_address: framed_ip_address = $1 #Get the usage in bytes: get_streaming_data_usage = `grep "$framed_ip_address" /scripts/user-bandwidth.txt | cut -d , -f 4` But I am getting the error as "Exec format error" in debug log. Please find the debug log as below. Fri Oct 23 11:32:11 2015 : Debug: (1) Executing: /scripts/get_streaming_data_usage.sh %{Framed-IP-Address}: Fri Oct 23 11:32:11 2015 : Debug: %{Framed-IP-Address} Fri Oct 23 11:32:11 2015 : Debug: Parsed xlat tree: Fri Oct 23 11:32:11 2015 : Debug: attribute --> Framed-IP-Address Fri Oct 23 11:32:11 2015 : Debug: (1) EXPAND %{Framed-IP-Address} Fri Oct 23 11:32:11 2015 : Debug: (1) --> 20.0.0.254 Fri Oct 23 11:32:11 2015 : ERROR: (1) Program returned code (2) and output 'Failed to execute "/scripts/get_streaming_data_usage.sh": Exec format error' Fri Oct 23 11:32:11 2015 : Debug: (1) } # update control = fail Please help to resolve this issue.