London | 25-SDC-Nov | Aida Eslamimoghadam | Sprint 4 | Implement Shell tools in python

implement-shell-tools/cat/cat.py

@@ -0,0 +1,44 @@
+import argparse
+
+
+def run(args):
+    for file_path in args.path:
+        counter_number = 1
+
+        with open(file_path, "r") as f:
+            lines = f.readlines()
+
+        if args.b:
+            for line in lines:
+                if line.strip() != "":
+                    print(counter_number, line, end="")
+                    counter_number += 1
+                else:
+                    print(line, end="")
+
+        elif args.n:
+            for line in lines:
+                print(counter_number, line, end="")
+                counter_number += 1
+
+        else:
+            for line in lines:
+                print(line, end="")
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        prog="my-cat",
+        description="Simple cat clone with -n and -b options",
+    )
+
+    parser.add_argument("-n", action="store_true", help="number all lines")
+    parser.add_argument("-b", action="store_true", help="The character to search for")
+    parser.add_argument("path", nargs="+", help="The file to search")
+
+    args = parser.parse_args()
+    run(args)
+
+
+if __name__ == "__main__":
+    main()

implement-shell-tools/ls/ls.py

@@ -0,0 +1,31 @@
+import argparse
+import os
+
+
+def show_files(files, show_hidden):
+    for file in files:
+        if show_hidden:
+            print(file)
+        else:
+            if not file.startswith("."):
+                print(file)
+
+
+parser = argparse.ArgumentParser(
+    prog="my-ls",
+    description="Simple ls clone with -a and -l options",
+)
+
+parser.add_argument("-a", action="store_true", help="include hidden files")
+parser.add_argument(
+    "-1", dest="one", action="store_true", help="list one entry per line"
+)
+parser.add_argument("path", nargs="?", default=".", help="The directory to list")
+args = parser.parse_args()
+
+
+fn = args.path
+listDir = os.listdir(fn)
+
+if fn != "":
+    show_files(listDir, args.a)

implement-shell-tools/wc/wc.py

@@ -0,0 +1,55 @@
+import argparse
+
+parser = argparse.ArgumentParser(
+    prog="my-wc",
+    description="Simple wc clone with -l and -w options",
+)
+
+
+
+
+def read_file(file_path):
+    with open(file_path, "r") as file:
+        return file.read()
+
+
+def count_text(text):
+    line_count = text.count("\n")
+    word_count = len(text.split())
+    char_count = len(text)
+    return line_count, word_count, char_count
+
+
+
+
+lineCounter = 0
+wordCounter = 0
+charCounter = 0
+
+parser.add_argument("-l", action="store_true", help="count lines")
+parser.add_argument("-w", action="store_true", help="count words")
+parser.add_argument("-c", action="store_true", help="count characters")
+parser.add_argument("path", nargs="+", default=".", help="The file to count")
+args = parser.parse_args()
+
+
+
+for path in args.path:
+    text = read_file(path)
+    lines, words, chars = count_text(text)
+
+    lineCounter += lines
+    wordCounter += words
+    charCounter += chars
+
+    if args.l:
+        print(lines, path)
+    elif args.w:
+        print(words, path)
+    elif args.c:
+        print(chars, path)
+    else:
+        print(lines, words, chars, path)
+
+if len(args.path) > 1 and not args.l and not args.w and not args.c:
+    print(lineCounter, wordCounter, charCounter, "total")