My boinc script that launches with two gpu's if argument passed

boing

#! /bin/bash
b=/dev/shm/cc_config_boing.xml
echo -e '<!--\nThis is a minimal configuration file cc_config.xml of the BOINC core client.\nFor a complete list of all available options and logging flags and their\nmeaning see: https://boinc.berkeley.edu/wiki/client_configuration\n-->\n<cc_config>\n  <log_flags>\n    <task>1</task>\n    <file_xfer>1</file_xfer>\n    <sched_ops>1</sched_ops>\n  </log_flags>\n  <options>'>$b
if [ "$1" = "$a" ]
then echo ' <ignore_ati_dev>0</ignore_ati_dev>'>>$b
fi
echo -e ' <use_all_gpus>1</use_all_gpus>\n  </options>\n</cc_config>\n'>>$b
cd /home/utku3/BOINC
boincmgr&boinc

in the directory, cc_config.xml is symlink to /dev/shm/cc_config_boing.xml