diff --git a/README.md b/README.md
index 8121c32..60e2061 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,11 @@ cargo build --release  # Build with all features enabled
 cargo build --release --no-default-features --features=circus  # Build with only specific features enabled. See supported types below.
 ```
 
+## Exit Codes
+By default, msg-tool will always return exit code 0 unless a exit signal is received (such as Ctrl+C).  
+You can use the `--exit-code` / `-x` option to specify a non-zero exit code when some jobs failed.  
+If all jobs failed, you can use the `--exit-code-all-failed` / `-X` option to specify a different exit code.
+
 ## Basic Usage
 ### Extract messages from script files
 ```bash
diff --git a/src/args.rs b/src/args.rs
index 1c2205c..7b519f1 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -564,6 +564,12 @@ pub struct Arg {
     #[arg(long, global = true)]
     /// Compress files in Musica paz archive when packing paz archive.
     pub musica_compress: bool,
+    #[arg(short = 'x', long, default_value_t = 0)]
+    /// Exit code when some jobs failed
+    pub exit_code: i32,
+    #[arg(short = 'X', long)]
+    /// Exit code when all jobs failed. By default, this is same as exit_code. This can override exit_code when all jobs failed.
+    pub exit_code_all_failed: Option<i32>,
     #[command(subcommand)]
     /// Command
     pub command: Command,
diff --git a/src/main.rs b/src/main.rs
index 5726a48..c06bce5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2944,7 +2944,9 @@ fn main() {
                         if op.exists() {
                             if !op.is_dir() {
                                 eprintln!("Output path is not a directory");
-                                return;
+                                std::process::exit(
+                                    argn.exit_code_all_failed.unwrap_or(argn.exit_code),
+                                );
                             }
                         } else {
                             std::fs::create_dir_all(op).unwrap();
@@ -3057,7 +3059,7 @@ fn main() {
                 if pb.exists() {
                     if !pb.is_dir() {
                         eprintln!("Patched path is not a directory");
-                        return;
+                        std::process::exit(argn.exit_code_all_failed.unwrap_or(argn.exit_code));
                     }
                 } else {
                     std::fs::create_dir_all(pb).unwrap();
@@ -3169,7 +3171,9 @@ fn main() {
                         if op.exists() {
                             if !op.is_dir() {
                                 eprintln!("Output path is not a directory");
-                                return;
+                                std::process::exit(
+                                    argn.exit_code_all_failed.unwrap_or(argn.exit_code),
+                                );
                             }
                         } else {
                             std::fs::create_dir_all(op).unwrap();
@@ -3241,5 +3245,11 @@ fn main() {
             }
         }
     }
-    eprintln!("{}", std::ops::Deref::deref(&COUNTER));
+    let counter = std::ops::Deref::deref(&COUNTER);
+    eprintln!("{}", counter);
+    if counter.all_failed() {
+        std::process::exit(argn.exit_code_all_failed.unwrap_or(argn.exit_code));
+    } else if counter.has_error() {
+        std::process::exit(argn.exit_code);
+    }
 }
diff --git a/src/utils/counter.rs b/src/utils/counter.rs
index 77c2d66..4ab0592 100644
--- a/src/utils/counter.rs
+++ b/src/utils/counter.rs
@@ -44,6 +44,19 @@ impl Counter {
             ScriptResult::Uncount => {}
         }
     }
+
+    /// Returns true if all jobs failed. (ok == 0 && error > 0)
+    pub fn all_failed(&self) -> bool {
+        let ok = self.ok.load(SeqCst);
+        let error = self.error.load(SeqCst);
+        ok == 0 && error > 0
+    }
+
+    /// Returns true if there were any errors.
+    pub fn has_error(&self) -> bool {
+        let error = self.error.load(SeqCst);
+        error > 0
+    }
 }
 
 impl std::fmt::Display for Counter {