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

implement-shell-tools/cat/cat.py

@@ -0,0 +1,30 @@
+import argparse
+parser = argparse.ArgumentParser(
+    prog="my-cat",
+    description="Simple cat clone with -n and -b options",
+)
+
+counterNumber = 1
+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()
+
+for file_path in args.path:
+    with open(file_path, "r") as f:
+        content = f.read()
+        arrText = content.split("\n")
+
+        if args.b:
+            for i in range(len(arrText )):
+                if arrText[i].strip() != "":
+                    print(counterNumber,arrText[i])
+                    counterNumber += 1
+
+        elif args.n:
+          for i in range(len(arrText )):
+              print(counterNumber, arrText[i])
+              counterNumber += 1
+        else:
+            print(content)

implement-shell-tools/ls/ls.py

@@ -0,0 +1,39 @@
+import argparse
+import os
+
+def show_unhidden_files(listDir):
+    for file in listDir:
+        if not file.startswith('.'):
+            print(file)
+def show_all_files(listDir):
+    for file in listDir:
+        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="use a long listing format")
+parser.add_argument("path", nargs="?", default=".", help="The directory to list")
+args = parser.parse_args()
+
+
+
+
+
+fn = args.path
+listDir = os.listdir(fn)
+if  fn!="":
+    if args.a and args.one:
+        show_all_files(listDir)
+    elif args.a:
+        show_all_files(listDir)
+    elif args.one:
+        show_unhidden_files(listDir)
+
+    else:
+        show_unhidden_files(listDir)
+

implement-shell-tools/wc/wc.py

@@ -0,0 +1,66 @@
+import argparse
+parser = argparse.ArgumentParser(
+    prog="my-wc",
+    description="Simple wc clone with -l and -w options",
+)
+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()
+
+if not args.l and not args.w and not args.c:
+    for file_path in args.path:
+        with open(file_path, "r") as f:
+            content = f.read()
+        arrText = content.split("\n")
+        lineCounter += len(arrText)
+        arrWords = content.split()
+        wordCounter += len(arrWords)
+        charCounter += len(content)
+    print("Line count:", lineCounter,"lines")
+    print("Word count:", wordCounter,"words")
+    print("Character count:", charCounter,"characters")
+elif args.l and args.w:
+    for file_path in args.path:
+        with open(file_path, "r") as f:
+            content = f.read()
+        arrText = content.split("\n")
+        lineCounter += len(arrText)
+        arrWords = content.split()
+        wordCounter += len(arrWords)
+    print("Line count:", lineCounter,"lines")
+    print("Word count:", wordCounter,"words")
+elif args.l and args.c:
+    for file_path in args.path:
+        with open(file_path, "r") as f:
+            content = f.read()
+        arrText = content.split("\n")
+        lineCounter += len(arrText)
+        charCounter += len(content)
+    print("Line count:", lineCounter,"lines")
+    print("Character count:", charCounter,"characters")
+elif args.l:
+    for file_path in args.path:
+        with open(file_path, "r") as f:
+            content = f.read()
+        arrText = content.split("\n")
+        lineCounter += len(arrText)
+    print("Line count:", lineCounter,"lines")
+
+elif args.w:
+    for file_path in args.path:
+        with open(file_path, "r") as f:
+            content = f.read()
+        arrText = content.split()
+        wordCounter += len(arrText)
+    print("Word count:", wordCounter,"words")
+elif args.c:
+    for file_path in args.path:
+        with open(file_path, "r") as f:
+            content = f.read()
+            charCounter += len(content)
+    print("Character count:", charCounter,"characters")