From c0beeccb1b46cfba7762740b901ca266adb65a6f Mon Sep 17 00:00:00 2001 From: Robert Morris Date: Wed, 4 Sep 2019 10:12:53 -0400 Subject: [PATCH] have echo use FD 1 for clarity --- user/echo.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/user/echo.c b/user/echo.c index bb98e97..d0ac6ab 100644 --- a/user/echo.c +++ b/user/echo.c @@ -7,7 +7,13 @@ main(int argc, char *argv[]) { int i; - for(i = 1; i < argc; i++) - printf("%s%s", argv[i], i+1 < argc ? " " : "\n"); + for(i = 1; i < argc; i++){ + write(1, argv[i], strlen(argv[i])); + if(i + 1 < argc){ + write(1, " ", 1); + } else { + write(1, "\n", 1); + } + } exit(); }