Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- modul:m122:learningunits:lu08:loesungen:dateien [2024/12/16 09:04] – angelegt msuter
+++ modul:m122:learningunits:lu08:loesungen:dateien [2024/12/16 09:31] (aktuell) – msuter
@@ Zeile 1: / Zeile 1: @@
 ====== LU08.L01: Arbeiten mit Dateien und Verzeichnissen ======
-Hier ist der Aufbau des Skripts als Orientierungshilfe:
 <code python>
 import subprocess
+import sys
 def create_directory(directory_name):
-    """ Creates a new directory """
+    """
-    pass
+    Creates a directory with the specified name.
+    :param directory_name:
+    :return:
+    """
+    try:
+        result = subprocess.run(
+            'mkdir ./python_bash_test&&cd python_bash_test',
+            shell=True,  # Use a shell to interpret the command
+            check=True,  # Raise an error if the command fails
+            text=True,  # Capture output as a string
+            stdout=subprocess.PIPE,  # Redirect standard output
+            stderr=subprocess.PIPE  # Redirect standard error
+        )
+    except subprocess.CalledProcessError as e:
+        print(f'Error executing the command: {e.cmd}')
+        print(f'Error message: {e.stderr}')
+        sys.exit(1)
+    except Exception as ex:
+        print(f'An unexpected error occurred: {ex}')
+        sys.exit(1)
 def create_files(directory_name, file_names):
-    """ Creates all files in the list """
+    """
-    pass
+    Creates files with the specified names in the specified directory.
+    :param directory_name:
+    :param file_names:
+    :return:
+    """
+    for filename in file_names:
+        try:
+            result = subprocess.run(
+                f'touch ./{directory_name}/' + filename,
+                shell=True,  # Use a shell to interpret the command
+                check=True,  # Raise an error if the command fails
+                text=True,  # Capture output as a string
+                stdout=subprocess.PIPE,  # Redirect standard output
+                stderr=subprocess.PIPE  # Redirect standard error
+            )
+        except subprocess.CalledProcessError as e:
+            print(f'Error executing the command: {e.cmd}')
+            print(f'Error message: {e.stderr}')
+            sys.exit(1)
+        except Exception as ex:
+            print(f'An unexpected error occurred: {ex}')
+            sys.exit(1)
-# Functions for steps 3-5
+def list_files(directory_name):
+    """
+    List the files in the specified directory.
+    :param directory_name:
+    :return:
+    """
+    try:
+        result = subprocess.run(
+            f'ls ./{directory_name}',
+            shell=True,  # Use a shell to interpret the command
+            check=True,  # Raise an error if the command fails
+            text=True,  # Capture output as a string
+            stdout=subprocess.PIPE,  # Redirect standard output
+            stderr=subprocess.PIPE  # Redirect standard error
+        )
+        print(result.stdout)
+    except subprocess.CalledProcessError as e:
+        print(f'Error executing the command: {e.cmd}')
+        print(f'Error message: {e.stderr}')
+        sys.exit(1)
+    except Exception as ex:
+        print(f'An unexpected error occurred: {ex}')
+        sys.exit(1)
+def file_size(directory_name):
+    """
+    Shows the size of the files in the specified directory.
+    :param directory_name:
+    :return:
+    """
+    try:
+        result = subprocess.run(
+            f'du -h ./{directory_name}',
+            shell=True,  # Use a shell to interpret the command
+            check=True,  # Raise an error if the command fails
+            text=True,  # Capture output as a string
+            stdout=subprocess.PIPE,  # Redirect standard output
+            stderr=subprocess.PIPE  # Redirect standard error
+        )
+        print(result.stdout)
+    except subprocess.CalledProcessError as e:
+        print(f'Error executing the command: {e.cmd}')
+        print(f'Error message: {e.stderr}')
+        sys.exit(1)
+    except Exception as ex:
+        print(f'An unexpected error occurred: {ex}')
+        sys.exit(1)
+def delete_files(directory_name, filename):
+    """
+    Deletes files with the specified names in the specified directory.
+    :param directory_name:
+    :param filename:
+    :return:
+    """
+    try:
+        result = subprocess.run(
+            f'rm ./{directory_name}/' + filename,
+            shell=True,  # Use a shell to interpret the command
+            check=True,  # Raise an error if the command fails
+            text=True,  # Capture output as a string
+            stdout=subprocess.PIPE,  # Redirect standard output
+            stderr=subprocess.PIPE  # Redirect standard error
+        )
+    except subprocess.CalledProcessError as e:
+        print(f'Error executing the command: {e.cmd}')
+        print(f'Error message: {e.stderr}')
+        sys.exit(1)
+    except Exception as ex:
+        print(f'An unexpected error occurred: {ex}')
+        sys.exit(1)
 if __name__ == '__main__':
     directory = 'python_bash_test'
     files = ['file1.txt', 'file2.txt', 'file3.txt']
     create_directory(directory)
     create_files(directory, files)
-    # call functions for step 3-5
+    list_files(directory)
-</code>
+    file_size(directory)
+    delete_files(directory, 'file3.txt')
-===== Erwartete Ergebnisse =====
-Beim Ausführen des Skripts sollte die Konsole folgendes ausgeben:
-==== Nach Schritt 1: ====
-<code>
-   Verzeichnis 'python_bash_test' erfolgreich erstellt.
 </code>
-==== Nach Schritt 2: ====
-<code>
-   Datei 'python_bash_test/file1.txt' erfolgreich erstellt.
-   Datei 'python_bash_test/file2.txt' erfolgreich erstellt.
-   Datei 'python_bash_test/file3.txt' erfolgreich erstellt.
-</code>
-==== Nach Schritt 3 (Liste der Dateien): ====
-<code>
-   Dateien im Verzeichnis 'python_bash_test':
-   file1.txt
-   file2.txt
-   file3.txt
-</code>
-==== Nach Schritt 4 (Dateigröße): ====
-<code>
-   Größen der Dateien im Verzeichnis 'python_bash_test':
-B file1.txt
-B file2.txt
-B file3.txt
-</code>
-==== Nach Schritt 5 (Aktualisierte Liste nach Löschung): ====
-<code>
-   Datei 'python_bash_test/file3.txt' wurde gelöscht.
-   Aktualisierte Dateien im Verzeichnis:
-   file1.txt
-   file2.txt
-</code>
 ----
 {{tag>M122-LU08}}
 [[https://creativecommons.org/licenses/by-nc-sa/4.0/|{{https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png}}]] Marcel Suter