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-rw-r--r--toys/echo.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/toys/echo.c b/toys/echo.c
index a7e6067e..7c475ca0 100644
--- a/toys/echo.c
+++ b/toys/echo.c
@@ -1,9 +1,32 @@
-/* vi: set sw=4 ts=4: */
-/*
+/* vi: set sw=4 ts=4:
+ *
* echo.c - echo supporting -n and -e.
*
+ * Copyright 2007 Rob Landley <rob@landley.net>
+ *
* See http://www.opengroup.org/onlinepubs/009695399/utilities/echo.html
- */
+
+config ECHO
+ bool "echo"
+ default y
+ help
+ usage: echo [-ne] [args...]
+
+ Write each argument to stdout, with one space between each, followed
+ by a newline.
+
+ -n No trailing newline.
+ -e Process the following escape sequences:
+ \\ backslash
+ \a alert (beep/flash)
+ \b backspace
+ \c Stop output here (avoids trailing newline)
+ \f form feed
+ \n newline
+ \r carriage return
+ \t horizontal tab
+ \v vertical tab
+*/
#include "toys.h"