Add more python commands

Signed-off-by: lewisevans2007 <[email protected]>

README.md

@@ -12,13 +12,13 @@ Here is a list of the commands and their availability:
 - `pwd` - Print name of current/working directory `C++` `C` `Ultra light` `Rust` `Python`
 - `cat` - Concatenate files and print on the standard output`C++` `C` `Ultra light` `Rust` `Python`
 - `echo` - Display a line of text `C++` `C` `Ultra light` `Rust` `Python`
-- `mkdir` - Create a directory`C++` `C` `Ultra light` `Rust`
-- `rmdir` - Remove a directory `C++` `C` `Ultra light` `Rust`
-- `rm` - Remove files or directories`C++` `C` `Ultra light` `Rust`
-- `cp` - Copy files and directories `C++` `Ultra light` `Rust`
-- `mv` - Move (rename) files `C++` `C` `Ultra light` `Rust`
-- `touch` - Change file timestamps `C++` `C` `Ultra light` `Rust`
-- `date` - Display the current time and date `C++` `C` `Ultra light` `Rust`
+- `mkdir` - Create a directory`C++` `C` `Ultra light` `Rust` `Python`
+- `rmdir` - Remove a directory `C++` `C` `Ultra light` `Rust` `Python` 
+- `rm` - Remove files or directories`C++` `C` `Ultra light` `Rust` `Python`
+- `cp` - Copy files and directories `C++` `Ultra light` `Rust` `Python`
+- `mv` - Move (rename) files `C++` `C` `Ultra light` `Rust` `Python`
+- `touch` - Change file timestamps `C++` `C` `Ultra light` `Rust` `Python`
+- `date` - Display the current time and date `C++` `C` `Ultra light` `Rust` `Python`
 
 For documentation on the commands, see the [doc/README.md](doc/README.md) folder.
 

src/python/cp.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+# Light builtins's (Python version)
+# cp - copy files or directories
+# A lightweight repository of useful shell commands
+# GitHub: https://www.github.com/lewisevans2007/light_builtins
+# Licence: GNU General Public License v3.0
+# By: Lewis Evans
+
+import os
+import sys
+
+def main(args):
+    if len(args) < 2:
+        print("cp: missing file operand")
+        return 1
+    if  len(args) > 2:
+        print("cp: extra operand")
+        return 1
+    if not os.path.exists(args[0]):
+        print("cp: cannot stat '" + args[0] + "': No such file or directory")
+        return 1
+    if os.path.isdir(args[0]):
+        print("cp: omitting directory '" + args[0] + "'")
+        return 1    
+
+    try:    
+        with open(args[0], 'r') as f:
+            data = f.read()
+    except:
+        print("cp: cannot stat '" + args[0] + "': Permission denied")
+        return 1
+
+    try:
+        with open(args[1], 'w') as f:
+            f.write(data)
+    except:
+        print("cp: cannot stat '" + args[1] + "': Permission denied")
+        return 1
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

src/python/date.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+# Light builtins's (Python version)
+# date - show the date and time 
+# A lightweight repository of useful shell commands
+# GitHub: https://www.github.com/lewisevans2007/light_builtins
+# Licence: GNU General Public License v3.0
+# By: Lewis Evans
+
+import sys
+import datetime
+
+def main(args):
+    date_time = datetime.datetime.now()
+    print(date_time)
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

src/python/mkdir.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+# Light builtins's (Python version)
+# mkdir - make directories
+# A lightweight repository of useful shell commands
+# GitHub: https://www.github.com/lewisevans2007/light_builtins
+# Licence: GNU General Public License v3.0
+# By: Lewis Evans
+
+import os
+import sys
+
+def main(args):
+    for arg in args:
+        os.mkdir(arg)
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

src/python/mv.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+# Light builtins's (Python version)
+# mv - move files or directories
+# A lightweight repository of useful shell commands
+# GitHub: https://www.github.com/lewisevans2007/light_builtins
+# Licence: GNU General Public License v3.0
+# By: Lewis Evans
+
+import os
+import sys
+
+def main(args):
+    if len(args) < 2:
+        print("mv: missing file operand")
+        return 1
+    if  len(args) > 2:
+        print("mv: extra operand")
+        return 1
+    if not os.path.exists(args[0]):
+        print("mv: cannot stat '" + args[0] + "': No such file or directory")
+        return 1
+    if os.path.isdir(args[0]):
+        print("mv: omitting directory '" + args[0] + "'")
+        return 1
+
+    try:
+        os.rename(args[0], args[1])
+    except:
+        print("mv: cannot stat '" + args[1] + "': Permission denied")
+        return 1
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

src/python/rm.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+# Light builtins's (Python version)
+# rm - remove files or directories
+# A lightweight repository of useful shell commands
+# GitHub: https://www.github.com/lewisevans2007/light_builtins
+# Licence: GNU General Public License v3.0
+# By: Lewis Evans
+
+import os
+import sys
+
+def main(args):
+    for arg in args:
+        os.remove(arg)
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

src/python/rmdir.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+# Light builtins's (Python version)
+# rmdir - remove empty directories
+# A lightweight repository of useful shell commands
+# GitHub: https://www.github.com/lewisevans2007/light_builtins
+# Licence: GNU General Public License v3.0
+# By: Lewis Evans
+
+import os
+import sys
+
+def main(args):
+    for arg in args:
+        os.rmdir(arg)
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

src/python/touch.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+# Light builtins's (Python version)
+# touch - create a file with the current time
+# A lightweight repository of useful shell commands
+# GitHub: https://www.github.com/lewisevans2007/light_builtins
+# Licence: GNU General Public License v3.0
+# By: Lewis Evans
+
+import os
+import sys
+
+def main(args):
+    if len(args) < 1:
+        print("touch: missing file operand")
+        return 1
+    if len(args) > 1:
+        print("touch: extra operand")
+        return 1
+    if os.path.exists(args[0]):
+        print("touch: cannot create file '" + args[0] + "': File exists")
+        return 1
+    try:
+        with open(args[0], 'w') as f:
+            f.write("")
+    except:
+        print("touch: cannot create file '" + args[0] + "': Permission denied")
+        return 1
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))