Bash: Terminate on Timeout/File Overflow while Executing Command

Question

I\'m writing a mock-grading script in bash. It\'s supposed to execute a C program which will give some output (which I redirect to a file.) I\'m trying to (1) make it timeout af

Answer 1

you can use timeout command eg

timeout -s 9 5s ./c_program > file

to check file size, you can stat the file, then do if/else

limit=1234 #bytes
size=$(stat -c "%s" file)
if [ "$size"  -gt "$limit" ] ;then
  exit
fi

see also here if you can't use these GNU tools, or here for some other inspirations.