diff --git a/.gitignore b/.gitignore
index 31d2550..3790324 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,11 +1,3 @@
-# eclipse
-bin
-*.launch
-.settings
-.metadata
-.classpath
-.project
-
 # idea
 out
 *.ipr
diff --git a/src/main/resources/assets/ajarc/bin/cat.js b/src/main/resources/assets/ajarc/bin/cat.js
new file mode 100644
index 0000000..0ee0fc9
--- /dev/null
+++ b/src/main/resources/assets/ajarc/bin/cat.js
@@ -0,0 +1,5 @@
+fs.writeFile("/test.txt", "long hard text file")
+var fileContent = fs.readFile(process.args[0])
+fileContent.split("\n").forEach(function (it) {
+    screen.print(it)
+})
\ No newline at end of file