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https://rednafi.com/misc/install/ · 28 Jul 2024

Replace mkdir, cp, and chmod with a single install command. Copy files, create directories, and set permissions in one step with GNU coreutils.

Here-doc headache

https://rednafi.com/misc/heredoc-headache/ · 19 Jul 2024

Avoid here-doc pitfalls when running remote commands via SSH. Learn variable expansion gotchas and simpler alternatives for deployment scripts.

shell unix devops github

I kind of like rebasing

https://rednafi.com/misc/on-rebasing/ · 18 Jun 2024

Master git rebase for cleaner commit history. Learn interactive rebasing, squashing commits, and rebasing feature branches onto main with practical examples.

git shell unix github

Pesky little scripts

https://rednafi.com/misc/pesky-little-scripts/ · 29 Oct 2023

Organize custom scripts with comma-prefixed naming. Improve tab completion and eliminate clutter by prefixing script names with special characters.

shell unix cli

Dotfile stewardship for the indolent

https://rednafi.com/misc/dotfile-stewardship-for-the-indolent/ · 27 Sep 2023

Manage dotfiles across devices with GNU Stow. Symlink configuration files from git repo to home directory with simple, idempotent commands.

shell unix til cli

Using DNS record to share text data

https://rednafi.com/misc/dns-record-to-share-text/ · 17 Jul 2023

Share data via DNS TXT records using dig and base64 encoding. Learn limitations, security concerns, and practical use cases for DNS tunneling.

shell unix til networking

Unix-style pipelining with Python's subprocess module

https://rednafi.com/python/unix-style-pipeline-with-subprocess/ · 14 Jul 2023

Build Unix-style command pipelines in Python using subprocess.run with stdout piping for efficient process chaining and output capture.

python til shell unix

Implementing a simple traceroute clone in Python

https://rednafi.com/python/implement-traceroute/ · 1 Jun 2023

Build a traceroute clone in Python using UDP and ICMP sockets to trace network packet routes and measure hop latency with TTL manipulation.

python networking shell unix

Fixed-time job scheduling with UNIX 'at' command

https://rednafi.com/misc/fixed-time-task-scheduling-with-at/ · 14 May 2023

Schedule one-time commands with UNIX at command. Learn job queuing, remote scheduling via HTTP API, and managing atd/atrun daemons.

shell unix javascript networking

Associative arrays in Bash

https://rednafi.com/misc/associative-arrays-in-bash/ · 3 May 2023

Learn how to use associative arrays in Bash to create key-value pairs, mimic dictionaries, and manage complex data structures in shell scripts.

shell unix til data structures