Lab9-F23

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School

Northern Kentucky University *

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383

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Information Systems

Date

Dec 6, 2023

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pdf

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Uploaded by KidFire12260

CIT383-Lab9 @CIT383 Instructors 1 CIT383 – Scripting 1 Lab 9 Network Services Objectives: • Demonstrate ability to write scripts to access remote resources using FTP • Demonstrate continued ability to use argument parsers in Python scripts Tasks: In this Lab, you would write a python script utilizing only the following python libraries/modules: socket , ftplib and httplib . Your script would have a menu system from which a user would select a task. A. Working with FTP 1. Log in to VM2 (CIT383-001_username_CentOS9-2) as "student" and VM1 (CIT383- 001_username_CentOS9-1) as "ftpuser" using the same password for both VMs. Make sure to note the IP addresses of both VM1 and VM2. 2. Download the files "file1.csv," "file2.csv," "file3.csv," and "file4.txt" from the Canvas assignment linked in this lab instruction to the "cit383F2023" directory in the home directory of "ftpuser" on VM1. You may choose to create additional files and dump them into that directory. 3. On VM1 (CIT383-001_username_CentOS9-1) under the "student" account, create a script with the following functions: a) Upload Function ( upload_file() ): accept a filename in the current working directory and upload it to the "cit383F2023" directory on VM2 (CIT383- 001_username_CentOS9-2). Display an error message if the specified file does not exist. b) Download Function ( download_file() ): Prompt the user to provide a file extension (file type) and download all files with the specified extension from the "cit383F2023" directory on VM2 to the current working directory on VM1. If no files with the specified extension are found, display a message indicating so. c) Execute Command Function ( exec_command() ): executes the “ ls ” command on the target computer listing only files of a certain type and returns that list to the computer from which the code is executed. Properly format the names of the files returned. You may choose to use a table for this. B. Putting it all together Mandatory Argument

CIT383-Lab9 @CIT383 Instructors 2 Mandatory (required) Positional Argument Description FTP_SERVER_IP This represents the IP address of the FTP server that is being reached. Assume the default port for the FTP server (21) Implement the following options: Option Required Argument Description -h <none> Display the help for this program -u filename If present, this option uploads the file specified from the current working directory of the current computer to VM2. (Task 3a) -d fileExtension If present, this option downloads all files with the specified extension from VM2 to the current working directory. (Task 3b) -l fileType If present, return the files with extension fileType within the cit383F2023 directory. These should be returned to the screen of the computer executing the script. The list should be appropriately formatted. (Task 3c) C. Submit your script via the Canvas assignment from which this file is linked. What to submit: Submit a single Python file containing the implementation of the above stated requirements. Name your file using the following format: Group_[your_group_number]_lab9.py and submit the file via the linked Canvas assignment. Remember to replace [your_group_number] with the number of your assignment group before submitting the file.

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