github.com/benhoyt/goawk@v1.8.1/testdata/t.intest (about)

     1  {
     2  	line = substr($0, index($0, " "))
     3  	print line
     4  	n = split(line, x)
     5  	if ($1 in x)
     6  		print "yes"
     7  	else
     8  		print "no"
     9  }