Merge pull request #173 from codecrafters-io/andy/remove-exit-0

Replace `exit 0` with just `exit`

Author: andy1li

stage_descriptions/base-04-pn5.md

@@ -4,13 +4,7 @@ In this stage, you'll implement the `exit` builtin.
 
 The [`exit`](https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#exit) builtin is a special command that terminates the shell.
 
-It takes an optional numeric argument as the shell's [exit status](https://en.wikipedia.org/wiki/Exit_status):
-```bash
-$ exit 0    # Exit with status 0 (success)
-$ exit 1    # Exit with status 1 (error)
-```
-
-When your shell receives the `exit` command, it should terminate immediately with the specified exit code.
+When your shell receives the `exit` command, it should terminate immediately.
 
 ### Tests
 
@@ -25,13 +19,7 @@ It will then send an invalid command to your shell, followed by the `exit` comma
 ```bash
 $ invalid_command_1
 invalid_command_1: command not found
-$ exit 0
+$ exit
 ```
 
-The tester will verify that:
-- Your shell terminates after receiving the `exit` command
-- Your shell exits with status code `0`
-
-### Notes
-
-- The tester will always pass in `0` as the argument to the `exit` command.
+The tester will verify that your shell terminates after receiving the `exit` command.

stage_descriptions/completions-02-gm9.md

@@ -2,7 +2,7 @@ In this stage, you'll extend your shell's tab completion to handle commands with
 
 Your shell should now not only complete the command itself but also correctly handle the subsequent arguments that the user types.
 This means that after completing the command with `<TAB>`, it should allow the user to continue typing arguments, and those arguments should also be interpreted correctly.
-You'll need to ensure commands like `echo ` and `type` autocomplete and still function correctly with arguments.
+You'll need to ensure commands like `echo` autocomplete and still function correctly with arguments.
 
 ### Tests
 
@@ -15,11 +15,12 @@ The tester will execute your program like this:
 The tests will simulate user input with tab presses and will execute builtin commands, similar to the previous stage, with added arguments:
 
 1.  **Input:** `ech<TAB>` `hello<ENTER>`
-    *   The tester expects the shell to first complete the `ech` to `echo` after `<TAB>`, then accept the `hello` argument, and after the `<ENTER>` key press, execute `echo hello`.
-    *   The shell should output `hello`.
 
-2.  **Input:** `exi<TAB>` `0<ENTER>`
-     *   The tester expects the shell to first complete `exi` to `exit` after `<TAB>`, then accept the `0` argument, and after the `<ENTER>` key press, execute `exit 0`.
-     *   The shell should exit with status code 0.
+    - The tester expects the shell to first complete the `ech` to `echo` after `<TAB>`, then accept the `hello` argument, and after the `<ENTER>` key press, execute `echo hello`.
+    - The shell should output `hello`.
 
-The tester will verify that your shell properly completes the commands and executes the commands with the given arguments.
+2.  **Input:** `ech<TAB>` `foo bar<ENTER>`
+    - The tester expects the shell to first complete `ech` to `echo` after `<TAB>`, then accept the `foo bar` arguments, and after the `<ENTER>` key press, execute `echo foo bar`.
+    - The shell should output `foo bar`.
+
+The tester will verify that your shell properly completes the commands and executes the commands with the given arguments.

stage_descriptions/history-persistence-05-kz7.md

@@ -15,14 +15,14 @@ $ echo hello
 hello
 $ echo world
 world
-$ exit 0
+$ exit
 ```
 
 The tester will then expect the history file's contents to look like:
 
 ```txt
 echo hello
 echo world
-exit 0
+exit
 <|EMPTY LINE|>
-```
+```

stage_descriptions/history-persistence-06-jv2.md

@@ -21,7 +21,7 @@ It will then send the following commands to your shell:
 ```bash
 $ echo new_command
 new_command
-$ exit 0
+$ exit
 ```
 
 The tester will then expect the history file's contents to look like:
@@ -30,6 +30,6 @@ The tester will then expect the history file's contents to look like:
 echo initial_command_1
 echo initial_command_2
 echo new_command
-exit 0
+exit
 <|EMPTY LINE|>
-```
+```