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[finsh] Add echo command for msh.

This commit is contained in:
Bernard Xiong 2016-04-18 13:53:32 +08:00
parent 43f68131ce
commit 838141e89f
1 changed files with 29 additions and 0 deletions
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29
components/finsh/msh_cmd.c
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@ -252,6 +252,35 @@ int cmd_mkfs(int argc, char **argv)
}
FINSH_FUNCTION_EXPORT_ALIAS(cmd_mkfs, __cmd_mkfs, format disk with file system);
int cmd_echo(int argc, char** argv)
{
if (argc == 2)
{
rt_kprintf("%s\n", argv[1]);
}
else if (argc == 3)
{
int fd;
fd = open(argv[2], O_RDWR | O_APPEND | O_CREAT, 0);
if (fd >= 0)
{
write (fd, argv[1], strlen(argv[1]));
close(fd);
}
else
{
rt_kprintf("open file:%s failed!\n", argv[2]);
}
}
else
{
rt_kprintf("Usage: echo \"string\" [filename]\n");
}
return 0;
}
FINSH_FUNCTION_EXPORT_ALIAS(cmd_echo, __cmd_echo, echo string to file);
#endif
#ifdef RT_USING_LWIP