github.com/benhoyt/goawk@v1.8.1/testdata/t.6 (about)

     1  /a|b|c/	{
     2  	i = $1
     3  	print
     4  	while (i >= 1) {
     5  		print "	", i
     6  		i = i / 10
     7  	}
     8  }