5 main(int argc, char *argv[])
12 if(argc > 1 && strcmp(argv[1], "-n") == 0)
16 for(i = 1+nflag; i < argc; i++)
17 len += strlen(argv[i])+1;
24 for(i = 1+nflag; i < argc; i++){
34 if(write(1, buf, p-buf) < 0){
35 fprint(2, "echo: write error: %r\n");