diff --git a/01_phase_rust_src/sv-rustit/src/executor/sent_signal.rs b/01_phase_rust_src/sv-rustit/src/executor/sent_signal.rs
index 761ae3d..0c6b121 100644
--- a/01_phase_rust_src/sv-rustit/src/executor/sent_signal.rs
+++ b/01_phase_rust_src/sv-rustit/src/executor/sent_signal.rs
@@ -21,23 +21,7 @@ pub fn sent_signal( svwait_var: i32, verbose: i8, command: &str, mut sv: status_
         // case where command is up
         if sv.sent_signal(b"u") {
             if verbose == 1 {
-                loop {
-                    let status = sv.update_status();
-                    if status == 1 {
-                        return 1;
-                    }
-                    if sv.is_up() == true {
-                        misc::print_status(sv);
-                        return 0
-                    }
-                    if time_wait >= svwait_var {
-                        println!("timeout: {}", sv.get_status_string());
-                        return 1
-                    }
-
-                    time_wait += 1;
-                    sleep(Duration::from_secs(1));
-                }
+                return misc::run_verbose(svwait_var, sv);
             } else {
                 return 0;
             }
@@ -56,7 +40,7 @@ pub fn sent_signal( svwait_var: i32, verbose: i8, command: &str, mut sv: status_
                         return 1;
                     }
                     if sv.is_up() == false {
-                        misc::print_status(sv);
+                        println!("{}", sv.get_status_string());
                         return 0
                     }
                     if time_wait >= svwait_var {
@@ -75,8 +59,22 @@ pub fn sent_signal( svwait_var: i32, verbose: i8, command: &str, mut sv: status_
         }
     }
 
+    if command == "o" {
+        // case where command is run once.
+        if sv.sent_signal(b"o") {
+            if verbose == 1 {
+                return misc::run_verbose(svwait_var, sv);
+            } else {
+                return 0;
+            }
+        } else { 
+            return 1;
+        }
+    }
+
     println!("Error, command not implemented.");
     return 1;
 }
 
 
+
diff --git a/01_phase_rust_src/sv-rustit/src/executor/sent_signal/misc.rs b/01_phase_rust_src/sv-rustit/src/executor/sent_signal/misc.rs
index 7a8e2a5..2addb04 100644
--- a/01_phase_rust_src/sv-rustit/src/executor/sent_signal/misc.rs
+++ b/01_phase_rust_src/sv-rustit/src/executor/sent_signal/misc.rs
@@ -1,6 +1,9 @@
 
 use crate::status_obj;
 
+use std::thread::sleep;
+use std::time::Duration;
+
 pub fn print_status(mut sv: status_obj::StatusObj) -> i32 {
     // The status code is the one who will be 
     let mut status_sv = sv.get_status_string();
@@ -19,3 +22,26 @@ pub fn print_status(mut sv: status_obj::StatusObj) -> i32 {
     println!("{}", status_sv);
     return 0;
 }
+
+
+pub fn run_verbose(svwait_var: i32, mut sv: status_obj::StatusObj) -> i32 {
+    let mut time_wait = 0;
+    loop {
+        let status = sv.update_status();
+        if status == 1 {
+            return 1;
+        }
+        if sv.is_up() == true {
+            println!("ok: {}", sv.get_status_string());
+            return 0
+        }
+        if time_wait >= svwait_var {
+            println!("timeout: {}", sv.get_status_string());
+            return 1
+        }
+
+        time_wait += 1;
+        sleep(Duration::from_secs(1));
+    }
+
+}