implementation of ls with python

Author: HilolaRustam

implement-shell-tools/cat/mycat.py

@@ -2,7 +2,7 @@
 
 import sys 
 import glob
-import os 
+
 
 def expand_paths(paths):
     """Expand glob patterns and return sorted unique file list."""

implement-shell-tools/ls/my-ls.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+
+def list_dir(path, show_all=False, one_per_line = False):
+    try:
+        entries = os.listdir(path)
+    except FileNotFoundError:
+        print(f"ls: cannot access '{path}': No such file or directory", file=sys.stderr)
+        return
+    
+    entries = sorted(entries)
+    
+    if show_all:
+        normal = sorted([e for e in entries if not e.startswith('.')])
+        hidden = sorted([e for e in entries if e.startswith('.')])
+        
+        entries = [".", ".."] + normal + hidden
+    else:    
+        entries = sorted([e for e in entries if not e.startswith('.')])
+
+    for entry in entries:
+        print(entry)
+
+def main():
+    args = sys.argv[1:]
+
+    show_all = False
+    one_per_line = False
+    paths = []
+
+    for a in args:
+        if a == "-a":
+            show_all = True
+        elif a == "-1":
+            one_per_line = True    
+        else:
+            paths.append(a)
+
+    if not paths:
+        paths = ["."]
+
+    for path in paths:
+        list_dir(path, show_all, one_per_line)
+
+if __name__ == "__main__":
+    main()