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bash

Bash shell scripting and automation

DevOpsBash Script Auto-Exit on Error with set -e Guide

Learn how to make Bash scripts automatically exit with code 1 on any command failure using set -e and strict mode set -euo pipefail. Avoid manual $? checks for reliable error handling in bash scripts, pipelines, and DevOps automation.

9 answers• 1 view
ProgrammingBash Syntax Highlighting in Markdown: ```bash vs ```sh

Learn reliable syntax highlighting for Bash and shell scripts in Markdown using ```bash, ```sh, or ```console. Examples for GitHub, VS Code, scripts vs sessions, common errors, and editor setups for perfect code coloring.

1 answer• 1 view
ProgrammingHow to Update Editable Pip Packages to Latest Main Branch

Discover how to automatically update all pip packages installed in editable mode (-e) to the latest main branch with a bash script. Keep editability intact, no reinstalls needed. Step-by-step guide, customizations, and git+ alternatives for Python devs.

1 answer• 2 views
OSFix Chroot Ubuntu 'No Files Below /bin/bash' Error

Learn why sudo chroot /mnt /bin/bash fails on Ubuntu with 'no files below /bin/bash' error. Fix by bind mounting /dev, /proc, /sys, /run, checking libraries with ldd, and copying resolv.conf. Step-by-step guide for chroot Ubuntu setups.

1 answer• 2 views
OSFix VSCode terminal: fully clear scrollback with cls/clear

Resolve VSCode's cls/clear not removing scrollback. Step‑by‑step fixes for PowerShell, Bash and an extension to fully clear the integrated terminal history.

1 answer• 1 view
ProgrammingCheck if a String Contains a Substring in Bash - Quick Guide

Fast, idiomatic ways to check if a string contains a substring in Bash. Use [[ *substring* ]], case, or =~ for regex. Also covers quoting and portability.

1 answer• 6 views
ProgrammingJSON pretty-print in Shell Scripts - jq, python, php

Pretty-print JSON in shell scripts using jq, Python's json.tool, php or json_pp. One-line examples for bash, curl, NDJSON and safe in-place file updates.

1 answer• 5 views
OSmkdir -p: Create Directory & Parent Directories

Learn mkdir -p equivalents to create a directory and missing parent directories in Linux/macOS, Python (os.makedirs), PowerShell (New-Item), Node.js, Java. Avoid race conditions with exist_ok=True.

1 answer• 4 views