added executing bash commands remotely tutorial

Author: x4nth055

README.md

@@ -53,6 +53,7 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
     - [How to Extract PDF Tables in Python](https://www.thepythoncode.com/article/extract-pdf-tables-in-python-camelot). ([code](general/pdf-table-extractor))
     - [How to Use Pickle for Object Serialization in Python](https://www.thepythoncode.com/article/object-serialization-saving-and-loading-objects-using-pickle-python). ([code](general/object-serialization))
     - [How to Automate your VPS or Dedicated Server Management in Python](https://www.thepythoncode.com/article/automate-veesp-server-management-in-python). ([code](general/automating-server-management))
+    - [How to Execute BASH Commands in a Remote Machine in Python](https://www.thepythoncode.com/article/executing-bash-commands-remotely-in-python). ([code](general/execute-ssh-commands))
 
 - ### [Web Scraping](https://www.thepythoncode.com/topic/web-scraping)
     - [How to Access Wikipedia in Python](https://www.thepythoncode.com/article/access-wikipedia-python). ([code](web-scraping/wikipedia-extractor))

general/execute-ssh-commands/README.md

@@ -0,0 +1,8 @@
+# [How to Execute BASH Commands in a Remote Machine in Python](https://www.thepythoncode.com/article/executing-bash-commands-remotely-in-python)
+To run this:
+- `pip3 install -r requirements.txt`
+- To execute certain commands, edit `execute_commands.py` on your needs and then execute.
+- To execute an entire BASH script (.sh) named `script.sh` for instance on `192.168.1.101` with `test` as username and `abc123` as password:
+    ```
+    python execute_bash.py 192.168.1.101 -u root -p inventedpassword123 -b script.sh
+    ```

general/execute-ssh-commands/execute_bash.py

@@ -0,0 +1,37 @@
+import paramiko
+import argparse
+
+parser = argparse.ArgumentParser(description="Python script to execute BASH scripts on Linux boxes remotely.")
+parser.add_argument("host", help="IP or domain of SSH Server")
+parser.add_argument("-u", "--user", required=True, help="The username you want to access to.")
+parser.add_argument("-p", "--password", required=True, help="The password of that user")
+parser.add_argument("-b", "--bash", required=True, help="The BASH script you wanna execute")
+
+args = parser.parse_args()
+hostname = args.host
+username = args.user
+password = args.password
+bash_script = args.bash
+
+# initialize the SSH client
+client = paramiko.SSHClient()
+# add to known hosts
+client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+try:
+    client.connect(hostname=hostname, username=username, password=password)
+except:
+    print("[!] Cannot connect to the SSH Server")
+    exit()
+
+# read the BASH script content from the file
+bash_script = open(bash_script).read()
+# execute the BASH script
+stdin, stdout, stderr = client.exec_command(bash_script)
+# read the standard output and print it
+print(stdout.read().decode())
+# print errors if there are any
+err = stderr.read().decode()
+if err:
+    print(err)
+# close the connection
+client.close()

general/execute-ssh-commands/execute_commands.py

@@ -0,0 +1,34 @@
+import paramiko
+
+hostname = "192.168.1.101"
+username = "test"
+password = "abc123"
+
+commands = [
+    "pwd",
+    "id",
+    "uname -a",
+    "df -h"
+]
+
+# initialize the SSH client
+client = paramiko.SSHClient()
+# add to known hosts
+client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+try:
+    client.connect(hostname=hostname, username=username, password=password)
+except:
+    print("[!] Cannot connect to the SSH Server")
+    exit()
+
+# execute the commands
+for command in commands:
+    print("="*50, command, "="*50)
+    stdin, stdout, stderr = client.exec_command(command)
+    print(stdout.read().decode())
+    err = stderr.read().decode()
+    if err:
+        print(err)
+    
+
+client.close()

general/execute-ssh-commands/requirements.txt

@@ -0,0 +1 @@
+paramiko

general/execute-ssh-commands/script.sh

@@ -0,0 +1,4 @@
+cd Desktop
+mkdir test_folder
+cd test_folder
+echo "$PATH" > path.txt