1 files changed, 28 insertions, 0 deletions

diff --git a/procps/pidof.c b/procps/pidof.c
index 49e469ca5..e102a31c6 100644
--- a/procps/pidof.c
+++ b/procps/pidof.c
@@ -7,6 +7,34 @@
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 
+//usage:#if (ENABLE_FEATURE_PIDOF_SINGLE || ENABLE_FEATURE_PIDOF_OMIT)
+//usage:#define pidof_trivial_usage
+//usage:       "[OPTIONS] [NAME]..."
+//usage:#define USAGE_PIDOF "\n\nOptions:"
+//usage:#else
+//usage:#define pidof_trivial_usage
+//usage:       "[NAME]..."
+//usage:#define USAGE_PIDOF /* none */
+//usage:#endif
+//usage:#define pidof_full_usage "\n\n"
+//usage:       "List PIDs of all processes with names that match NAMEs"
+//usage:        USAGE_PIDOF
+//usage:        IF_FEATURE_PIDOF_SINGLE(
+//usage:     "\n        -s      Show only one PID"
+//usage:        )
+//usage:        IF_FEATURE_PIDOF_OMIT(
+//usage:     "\n        -o PID  Omit given pid"
+//usage:     "\n                Use %PPID to omit pid of pidof's parent"
+//usage:        )
+//usage:
+//usage:#define pidof_example_usage
+//usage:       "$ pidof init\n"
+//usage:       "1\n"
+//usage:        IF_FEATURE_PIDOF_OMIT(
+//usage:       "$ pidof /bin/sh\n20351 5973 5950\n")
+//usage:        IF_FEATURE_PIDOF_OMIT(
+//usage:       "$ pidof /bin/sh -o %PPID\n20351 5950")
+
 #include "libbb.h"
 
 enum {