1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Copyright 2000-2009 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 */ 6 7#include <common.h> 8#include <command.h> 9 10static int do_echo(struct cmd_tbl *cmdtp, int flag, int argc, 11 char *const argv[]) 12{ 13 int i = 1; 14 bool space = false; 15 bool newline = true; 16 17 if (argc > 1) { 18 if (!strcmp(argv[1], "-n")) { 19 newline = false; 20 ++i; 21 } 22 } 23 24 for (; i < argc; ++i) { 25 if (space) { 26 putc(' '); 27 } 28 puts(argv[i]); 29 space = true; 30 } 31 32 if (newline) 33 putc('\n'); 34 35 return 0; 36} 37 38U_BOOT_CMD( 39 echo, CONFIG_SYS_MAXARGS, 1, do_echo, 40 "echo args to console", 41 "[-n] [args..]\n" 42 " - echo args to console; -n suppresses newline" 43); 44