More doc updates for BusyBox, with fixes to apps for bugs revealed

while trying to write docs . :-)
 -Erik


git-svn-id: svn://busybox.net/trunk/busybox@451 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 11 insertions, 0 deletions

diff --git a/coreutils/echo.c b/coreutils/echo.c
index 91f17aa0f..2405d0ae1 100644
--- a/coreutils/echo.c
+++ b/coreutils/echo.c
@@ -25,6 +25,14 @@
 #include "internal.h"
 #include <stdio.h>
 
+static const char uname_usage[] =
+        "echo [-neE] [ARG ...]\n\n"
+        "Prints the specified ARGs to stdout\n\n"
+        "Options:\n"
+        "\t-n\tsuppress trailing newline\n"
+        "\t-e\tinterpret backslash-escaped characters (i.e. \\t=tab etc)\n"
+        "\t-E\tdisable interpretation of backslash-escaped characters\n";
+
 extern int 
 echo_main(int argc, char** argv)
 {
@@ -45,6 +53,9 @@ echo_main(int argc, char** argv)
                 } else if (strcmp(p, "-E")==0) {
                         eflag = 0;
                 }
+                else if (strncmp(p, "--", 2)==0) {
+                        usage( uname_usage);
+                } 
                 else break;
                 ap++;
         }