Unwanted Error while running the script

why i am getting this error
Incorrect invocation of script. Usage: ./check_QBox_server_memory.sh /proc/meminfo
i don’t how and where to use that cat 1$

you are not executing the command correctly. Just google your query of cat $1 to know what it means and then read the check_QBox_server_memory.sh file carefully you will find the way out.