1 /* 2 * Copyright (c) 1989 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #ifndef lint 19 char copyright[] = 20 "@(#) Copyright (c) 1989 The Regents of the University of California.\n\ 21 All rights reserved.\n"; 22 #endif /* not lint */ 23 24 #ifndef lint 25 static char sccsid[] = "@(#)echo.c 5.2 (Berkeley) 07/30/89"; 26 #endif /* not lint */ 27 28 #include <stdio.h> 29 30 /* ARGSUSED */ 31 main(argc, argv) 32 int argc; 33 char **argv; 34 { 35 int nflag; 36 37 ++argv; 38 if (!strcmp(*argv, "-n")) { 39 ++argv; 40 nflag = 1; 41 } 42 else 43 nflag = 0; 44 45 while (*argv) { 46 (void)printf("%s", *argv); 47 if (*++argv) 48 putchar(' '); 49 } 50 if (!nflag) 51 putchar('\n'); 52 exit(0); 53 } 54