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	echo.c - 9base - revived minimalist port of Plan 9 userland to Unix
	git clone git://git.suckless.org/9base
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	---
	echo.c (553B)
	---
	1 #include <u.h>
	2 #include <libc.h>
	3
	4 void
	5 main(int argc, char *argv[])
	6 {
	7 int nflag;
	8 int i, len;
	9 char buf, p;
	10
	11 nflag = 0;
	12 if(argc > 1 && strcmp(argv[1], "-n") == 0)
	13 nflag = 1;
	14
	15 len = 1;
	16 for(i = 1+nflag; i < argc; i++)
	17 len += strlen(argv[i])+1;
	18
	19 buf = malloc(len);
	20 if(buf == 0)
	21 exits("no memory");
	22
	23 p = buf;
	24 for(i = 1+nflag; i < argc; i++){
	25 strcpy(p, argv[i]);
	26 p += strlen(p);
	27 if(i < argc-1)
	28 *p++ = ' ';
	29 }
	30
	31 if(!nflag)
	32 *p++ = '\n';
	33
	34 if(write(1, buf, p-buf) < 0)
	35 fprint(2, "echo: write error: %r\n");
	36
	37 exits((char *)0);
	38 }