Implement ls command

Author: RihannaP

implement-shell-tools/ls/ls.js

@@ -0,0 +1,29 @@
+import { program } from "commander";
+import { promises as fs } from "node:fs";
+
+program
+    .name("ls command")
+    .description("Implementing 'ls' command")
+    .option("-1", "list one file per line")
+    .option("-a", "include hidden files")
+    .argument("[directory]", "Directory to list");
+
+program.parse();
+
+const directory = program.args[0] || ".";  //current directory as a defult if no directory provided
+const allFiles = program.opts().a;
+const listPerLine = program.opts()["1"];
+
+
+
+const files = await fs.readdir(directory);
+const visibleFiles = allFiles ? files : files.filter(file => !file.startsWith("."));
+
+if (listPerLine){
+    for(const file of visibleFiles){
+    console.log(file)
+    }
+}else{
+        console.log(visibleFiles.join("     "))
+    }
+