Linux scripting — 3 Technical Articles

Jun 24, 2024 · Fundamentals

Mastering getopts: A Step‑by‑Step Guide to Parsing Shell Script Options

This tutorial explains how to use Bash's built‑in getopts command to define option strings, invoke it within a while loop, handle short and argument‑bearing options, process errors, and print results, illustrated with a complete example script.

Command-line parsingLinux scriptinggetopts

0 likes · 5 min read

Mastering getopts: A Step‑by‑Step Guide to Parsing Shell Script Options

Liangxu Linux

Sep 8, 2022 · Operations

When to Use $(…) vs ${…} in Bash: Command vs Parameter Substitution Explained

This article explains the technical differences between Bash's command substitution $(command) and parameter expansion ${parameter}, illustrating their syntax, usage examples, and precedence rules so readers can choose the appropriate form for scripting tasks.

Linux scriptingcommand substitutionparameter expansion

0 likes · 5 min read

When to Use $(…) vs ${…} in Bash: Command vs Parameter Substitution Explained

Liangxu Linux

Sep 23, 2020 · Operations

Speed Up File Path Verification with Bash: Split & Parallel Execution

This guide shows how to efficiently verify whether millions of file paths exist on remote servers by splitting a large list into smaller chunks and processing each chunk concurrently with a Bash script, dramatically reducing runtime compared to a single‑threaded approach.

Linux scriptingbashfile verification

0 likes · 4 min read

Speed Up File Path Verification with Bash: Split & Parallel Execution