diff --git a/adb_cli/src/commands/local.rs b/adb_cli/src/commands/local.rs
index 941c2fd..8e4fa9c 100644
--- a/adb_cli/src/commands/local.rs
+++ b/adb_cli/src/commands/local.rs
@@ -19,8 +19,10 @@ pub enum LocalCommand {
     /// Run an activity on device specified by the intent
     Run {
         /// The package whose activity is to be invoked
+        #[clap(short = 'p', long = "package")]
         package: String,
         /// The activity to be invoked itself, Usually it is MainActivity
+        #[clap(short = 'a', long = "activity")]
         activity: String,
     },
     /// Reboot the device
diff --git a/adb_cli/src/commands/usb.rs b/adb_cli/src/commands/usb.rs
index 2acaad7..fbea473 100644
--- a/adb_cli/src/commands/usb.rs
+++ b/adb_cli/src/commands/usb.rs
@@ -37,8 +37,10 @@ pub enum UsbCommands {
     /// Run an activity on device specified by the intent
     Run {
         /// The package whose activity is to be invoked
+        #[clap(short = 'p', long = "package")]
         package: String,
         /// The activity to be invoked itself, Usually it is MainActivity
+        #[clap(short = 'a', long = "activity")]
         activity: String,
     },
     /// Reboot the device
diff --git a/adb_cli/src/main.rs b/adb_cli/src/main.rs
index 9e3d2e5..8b50ff0 100644
--- a/adb_cli/src/main.rs
+++ b/adb_cli/src/main.rs
@@ -66,7 +66,8 @@ fn main() -> Result<()> {
                     }
                 }
                 LocalCommand::Run { package, activity } => {
-                    device.run_activity(&package, &activity)?;
+                    let output = device.run_activity(&package, &activity)?;
+                    std::io::stdout().write_all(&output)?;
                 }
                 LocalCommand::HostFeatures => {
                     let features = device
@@ -219,7 +220,8 @@ fn main() -> Result<()> {
                     log::info!("Uploaded {filename} to {path}");
                 }
                 UsbCommands::Run { package, activity } => {
-                    device.run_activity(&package, &activity)?;
+                    let output = device.run_activity(&package, &activity)?;
+                    std::io::stdout().write_all(&output)?;
                 }
             }
         }
diff --git a/adb_client/src/adb_device_ext.rs b/adb_client/src/adb_device_ext.rs
index 10be474..52b725b 100644
--- a/adb_client/src/adb_device_ext.rs
+++ b/adb_client/src/adb_device_ext.rs
@@ -29,11 +29,14 @@ pub trait ADBDeviceExt {
     /// Reboots the device using given reboot type
     fn reboot(&mut self, reboot_type: RebootType) -> Result<()>;
 
-    /// Run an `activity` from a given `package` on device
-    fn run_activity(&mut self, package: &str, activity: &str) -> Result<()> {
+    /// Run `activity` from `package` on device. Return the command output.
+    fn run_activity(&mut self, package: &str, activity: &str) -> Result<Vec<u8>> {
+        let mut output = Vec::new();
         self.shell_command(
             ["am", "start", &format!("{package}/{package}.{activity}")],
-            std::io::stdout(),
-        )
+            &mut output,
+        )?;
+
+        Ok(output)
     }
 }