tag

bash

2 posts

The Complete Guide to Bash I/O Redirection: From File Descriptors 0/1/2 to Advanced Pipeline Tricks

Coding, Log—Tags: bash, linux, devops, command—Posted by Starck on June 23, 2013

A comprehensive guide to Linux/Bash I/O redirection: standard streams (0/1/2), /dev/null black hole, order-of-evaluation pitfalls (> file 2>&1 vs 2>&1 > file), the sudo redirection trap, and script-wide logging with exec.

The Complete Guide to Bash Prompt (PS1) and ANSI Color: From Escape Sequences to 256-Color and Line-Wrapping Fixes

Coding, Log—Tags: bash, linux, terminal, command—Posted by Starck on March 29, 2013

A comprehensive guide to customizing the Bash prompt (PS1) with ANSI colors (16 and 256-color SGR): escape sequences, color formatting, debugging broken line-wrapping with '\[ \]', and building modern Git-aware prompts.