github.com/benhoyt/goawk@v1.8.1/testdata/T.system (about)

     1  echo T.system: test system built-in
     2  
     3  awk=${awk-../a.out}
     4  
     5  rm -f foo
     6  $awk 'BEGIN {
     7  	n = system("exit 3")
     8  	print n
     9  	exit n+1
    10  }
    11  ' >foo
    12  echo $? >>foo
    13  echo "3
    14  4" >foo1
    15  diff foo foo1 || echo 'BAD: T.system (1)'