cmd_echo.c 1.4 KB

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  1. /*
  2. * Copyright 2000-2009
  3. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. #include <common.h>
  24. #include <command.h>
  25. int do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  26. {
  27. int i;
  28. int putnl = 1;
  29. for (i = 1; i < argc; i++) {
  30. char *p = argv[i], c;
  31. if (i > 1)
  32. putc(' ');
  33. while ((c = *p++) != '\0') {
  34. if (c == '\\' && *p == 'c') {
  35. putnl = 0;
  36. p++;
  37. } else {
  38. putc(c);
  39. }
  40. }
  41. }
  42. if (putnl)
  43. putc('\n');
  44. return 0;
  45. }
  46. U_BOOT_CMD(
  47. echo, CONFIG_SYS_MAXARGS, 1, do_echo,
  48. "echo args to console",
  49. "[args..]\n"
  50. " - echo args to console; \\c suppresses newline"
  51. );