diff --git a/bash-5.1/.gitignore b/bash-5.1/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..6c7dbc5f085f84f2a270711cca252e16ba3e0ce4
--- /dev/null
+++ b/bash-5.1/.gitignore
@@ -0,0 +1,4 @@
+*.swp
+tags
+target/
+.vscode
diff --git a/bash-5.1/Cargo.lock b/bash-5.1/Cargo.lock
new file mode 100644
index 0000000000000000000000000000000000000000..80e89c60c2be1156383be4e888bad214b616729a
--- /dev/null
+++ b/bash-5.1/Cargo.lock
@@ -0,0 +1,19 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "command1"
+version = "0.1.0"
+
+[[package]]
+name = "command2"
+version = "0.1.0"
+
+[[package]]
+name = "rsbash"
+version = "0.1.0"
+dependencies = [
+ "command1",
+ "command2",
+]
diff --git a/bash-5.1/Cargo.toml b/bash-5.1/Cargo.toml
new file mode 100644
index 0000000000000000000000000000000000000000..ec2f4f94e8ca1e1b1b2b3eda3ff3596abb48b863
--- /dev/null
+++ b/bash-5.1/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "rsbash"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[workspace]
+members = ["builtins/command1", "builtins/command2"]
+
+[dependencies]
+command1 = {path = "./builtins/command1"}
+command2 = {path = "./builtins/command2"}
diff --git a/bash-5.1/builtins/command1/Cargo.toml b/bash-5.1/builtins/command1/Cargo.toml
new file mode 100644
index 0000000000000000000000000000000000000000..97f993522ac8945cb838247d2f17590ce02d6728
--- /dev/null
+++ b/bash-5.1/builtins/command1/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "command1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/bash-5.1/builtins/command1/src/lib.rs b/bash-5.1/builtins/command1/src/lib.rs
new file mode 100644
index 0000000000000000000000000000000000000000..4655c221b95f3d248bd79c4359da9f598b70f094
--- /dev/null
+++ b/bash-5.1/builtins/command1/src/lib.rs
@@ -0,0 +1,12 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        let result = 2 + 2;
+        assert_eq!(result, 4);
+    }
+}
+
+    pub fn say_hello() {
+        println!("hello 1111!");
+    }
diff --git a/bash-5.1/builtins/command2/Cargo.toml b/bash-5.1/builtins/command2/Cargo.toml
new file mode 100644
index 0000000000000000000000000000000000000000..c32d68c9a0e07eb13c8e2e2ea8d75c91e8983671
--- /dev/null
+++ b/bash-5.1/builtins/command2/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "command2"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/bash-5.1/builtins/command2/src/lib.rs b/bash-5.1/builtins/command2/src/lib.rs
new file mode 100644
index 0000000000000000000000000000000000000000..a31d1d737a500d247d7be3b9b30b18132fb1e701
--- /dev/null
+++ b/bash-5.1/builtins/command2/src/lib.rs
@@ -0,0 +1,11 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        let result = 2 + 2;
+        assert_eq!(result, 4);
+    }
+}
+pub fn hello2() {
+    println!("222222222222222");
+}
diff --git a/bash-5.1/src/main.rs b/bash-5.1/src/main.rs
new file mode 100644
index 0000000000000000000000000000000000000000..b1ec861f325d7966834d67593d6472b36ebf3afe
--- /dev/null
+++ b/bash-5.1/src/main.rs
@@ -0,0 +1,10 @@
+use command1::say_hello;
+use command2::hello2;
+
+
+fn main() {
+    hello2();
+    say_hello();
+    println!("Hello, world!");
+    //execute_cmd();
+}
diff --git a/record.txt b/record.txt
index 099b7d91c923c6fc0fdaaea4be224d5d9d4fcfca..a4265686e0eb7910dbc7902e6ceeb2d39c320867 100644
--- a/record.txt
+++ b/record.txt
@@ -2,3 +2,4 @@
 2
 1
 2
+3