github.com/benhoyt/goawk@v1.8.1/testdata/t.in3 (about)

     1  	{ x[NR] = $0 }
     2  END {
     3  	for (i in x)
     4  		if (x[i] ~ /shen/)
     5  			break
     6  	print i, x[i]
     7  }