This "head_tail_file" gist is a contrived example of a command line utility facilitating AI code generation experimentation.
Owen Holland dutchLuck
dutchLuck
/ Package.swift
Last active
March 15, 2026 11:58
A Swift program using the Fixed precision Decimal package to read one or more CSV files and output Basic Statistics for each column of data with better than double precision accuracy.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // swift-tools-version: 5.9 | |
| import PackageDescription | |
| let package = Package( | |
| name: "fdbs", | |
| platforms: [.macOS(.v12)], | |
| dependencies: [ | |
| .package(url: "https://github.com/apple/swift-argument-parser", from: "1.2.0") | |
| ], | |
| targets: [ |
dutchLuck
/ multifloat.jl
Created
March 10, 2026 11:43
Variant of the Julia script "bfbs.jl" that uses MultiFloat instead of BigFloat to speed up calculations, but still retains more precision than Float64
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #! /usr/bin/env julia | |
| # | |
| # M U L T I F L O A T . J L | |
| # | |
| # Multi Float Basic Statistics | |
| # | |
| # multifloat.jl last updated on Tue Mar 10 20:52:50 2026 by O.H. as 0v01 | |
| # | |
| # Descendant of bfbs.jl 0v11, but adapted to use the MultiFloat package | |
| # and its Float64x4 type for high precision calculations. It is a testbed |
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.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/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.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #! /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.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // | |
| // 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
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #! /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
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #! /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
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // | |
| // 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.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // | |
| // 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 | |
| // |
NewerOlder