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| author | Robert Morris <rtm@csail.mit.edu> | 2019-09-04 10:12:53 -0400 |
|---|---|---|
| committer | Robert Morris <rtm@csail.mit.edu> | 2019-09-04 10:12:53 -0400 |
| commit | c0beeccb1b46cfba7762740b901ca266adb65a6f (patch) | |
| tree | 2087b756e53fbc06f8a50627109fbd3f6e77dc3e | |
| parent | 25e113138d677eacb8f2ce872ca7ff7596ae44e0 (diff) | |
| download | xv6-labs-c0beeccb1b46cfba7762740b901ca266adb65a6f.tar.gz xv6-labs-c0beeccb1b46cfba7762740b901ca266adb65a6f.tar.bz2 xv6-labs-c0beeccb1b46cfba7762740b901ca266adb65a6f.zip | |
have echo use FD 1 for clarity
| -rw-r--r-- | user/echo.c | 10 |
1 files 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(); } |