Liangxu Linux

May 29, 2023 · Fundamentals

Unlock Hidden Linux Gems: Master fold, column, sg, xxd, pwdx, and write

This guide explores lesser‑known Linux /usr/bin utilities—fold, column, sg, xxd, pwdx, and write—showing how each command works, providing example usages, and explaining practical scenarios where they simplify text formatting, group permission handling, hex dumping, process directory inspection, and inter‑user messaging.