1 files changed, 13 insertions, 0 deletions

diff --git a/coreutils/tee.c b/coreutils/tee.c
index e66e885ec..3e3164e70 100644
--- a/coreutils/tee.c
+++ b/coreutils/tee.c
@@ -10,6 +10,19 @@
 /* BB_AUDIT SUSv3 compliant */
 /* http://www.opengroup.org/onlinepubs/007904975/utilities/tee.html */
 
+//usage:#define tee_trivial_usage
+//usage:       "[-ai] [FILE]..."
+//usage:#define tee_full_usage "\n\n"
+//usage:       "Copy stdin to each FILE, and also to stdout\n"
+//usage:     "\nOptions:"
+//usage:     "\n        -a      Append to the given FILEs, don't overwrite"
+//usage:     "\n        -i      Ignore interrupt signals (SIGINT)"
+//usage:
+//usage:#define tee_example_usage
+//usage:       "$ echo \"Hello\" | tee /tmp/foo\n"
+//usage:       "$ cat /tmp/foo\n"
+//usage:       "Hello\n"
+
 #include "libbb.h"
 
 int tee_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;