This "head_tail_file" gist is a contrived example of a command line utility facilitating AI code generation experimentation.
Owen Holland dutchLuck
dutchLuck
/ network_scan.py
Last active
February 16, 2026 08:36
Python script to leverage ping and arp to discover IP to ID/name association via known MAC addresses on the local network when DHCP shifts IP around and local DNS is dodgy.
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| #!/usr/bin/env python3 | |
| # | |
| # N E T W O R K _ S C A N . P Y | |
| # | |
| # network_scan.py last edited on Wed Feb 16 19:26:35 2026 as 0v8 | |
| # | |
| # Ping scan the local network for devices with known MAC addresses | |
| # and record their IPv4 addresses and ping status. The results are | |
| # displayed in two tables, one sorted by device name and the other |
dutchLuck
/ csvstats.py
Created
July 24, 2025 10:16
Output the basic descriptive stats for one or more CSV data files containing one or more columns of numbers.
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| #! /bin/python | |
| # | |
| # C S V S T A T S . P Y | |
| # | |
| # Output the basic stats for one or more data files containing | |
| # one or more columns of numbers. If there are multiple columns | |
| # of numbers then they must be separated by a comma. Comments | |
| # are allowed in the data files if the comments are started with | |
| # a # (i.e. hash character). | |
| # |
dutchLuck
/ analyse_csv.go
Last active
July 18, 2025 10:23
Display the basic statistics of Comma Separated Value data from one or a number of files using the golang stat package.
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| // | |
| // A N A L Y S E _ C S V . G O | |
| // | |
| // | |
| // | |
| // Display basic statistics of one or more columns of numbers separated by commas | |
| // in one or more files. | |
| // |
dutchLuck
/ froniusPV_graph.py
Last active
January 4, 2026 10:25
Python script to graph the real-time power/energy and voltage data from a Fronius inverter
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| #! /bin/python | |
| # | |
| # F R O N I U S P V _ G R A P H . P Y | |
| # | |
| # Last Modified on Fri Jan 04 21:23:30 2026 as version 0v12 | |
| # | |
| # Code to graph the real-time data from a Fronius Primo inverter. | |
| # | |
| # Graphs Output AC Voltage and Output AC Power by default and the | |
| # user can select alternate data to graph via command line options. |
dutchLuck
/ checkReportedMacOS_ping_short-comings.sh
Created
November 27, 2024 09:32
Shell script to check on the short-comings of the MacOS ping utility and its associated man-page that have been reported to Apple through Feedback Assistant
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| #! /bin/sh | |
| # | |
| # This shell script allows a quick check on whether Apple have done | |
| # anything about the feedback on the short-comings of MacOS ping. | |
| # | |
| # Needs to have a target that responds to ICMP requests (i.e. ping request). | |
| # In my case my local router (192.168.1.1) responds to ICMP requests apart from | |
| # MASK_REQ. Edit "LOCAL_IP_ROUTER" value to suit a different network setup. | |
| # | |
| LOCAL_IP4_ROUTER=192.168.1.1 |
dutchLuck
/ try_1_utf8_char.rs
Last active
February 22, 2025 06:12
Try a quick test of a sequence of bytes specified on the command line to produce a UTF-8 character
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| // | |
| // T R Y _ 1 _ U T F 8 _ C H A R | |
| // | |
| // try_1_utf8_char.rs last edited on Sat Feb 22 16:09:31 2025 | |
| // | |
| // Display a character from the UTF-8 bytes (or Unicode code point) specified | |
| // on the command line. | |
| // | |
| // N.B. 1. The quickest and easiest access to similar, and probably | |
| // better, functionality as this rust code is to use the following |
dutchLuck
/ head_tail_file.md
Last active
October 19, 2024 10:32
Read and output up to 1000 (UTF-8) characters from either the head or tail of a file or from stdin if no file is specified:
dutchLuck
/ file_byte_display.rs
Last active
September 30, 2024 12:51
Another (very simple) file byte display/dump command line utility in the Rust language, largely produced by CopilotAI from newbie queries.
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| // | |
| // F I L E _ B Y T E _ D I S P L A Y | |
| // | |
| // File Byte display | |
| // | |
| // Display the bytes in a small file, or the first 1000 bytes | |
| // of a larger file. | |
| // | |
| // Warning: lacks adequate command line parameter checking | |
| // |
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| /* | |
| * T Y P O S . C | |
| * | |
| * modified version that can be compiled by gcc | |
| * Original T Y P O S is shown in a listing found on URL | |
| * https://archive.org/details/68micro-vol-04-num-11/page/n35/mode/1up | |
| */ | |
| /*************************************************************/ | |
| /* Written by: Jodie A. Zoeller, SWTPc, August 1982 */ |
dutchLuck
/ rtimeExample.c
Last active
February 21, 2024 13:31
Linux man page example of using library rtime function to get time from a network server running the RFC 868 time (port 37) service.
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| /* | |
| * R T I M E E X A M P L E | |
| * | |
| */ | |
| /* | |
| * Manpage example for rtime() slightly modified | |
| * compile on Ubuntu 20.04 LTS or older LTS version | |
| * cc -Wall -o rtimeExample rtimeExample.c | |
| */ |
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