Day 7: Linux Directory Operation Commands 🐧

OS: Ubuntu Server (AWS EC2)
Source: GeeksForGeeks Linux Track
Status: ✅ All commands practiced on live terminal

Overview

Practiced 12 essential Directory Operation Commands hands-on on a live Ubuntu Server as part of my 100 Days DevOps & Cloud Engineering Challenge.

#	Command	Description	Hands-on Example
1	`cd`	Change current directory	`cd Documents`
2	`dir`	Display files and folders in current directory	`dir`
3	`dirname`	Extract directory path from full file path	`dirname /Desktop/root/bash.sh`
4	`dirs`	Show directory navigation history (stack)	`dirs`
5	`du`	Show disk usage of directories and files	`du -h`
6	`find`	Search files/directories recursively	`find ./gfg -name "sample.txt"`
7	`lsblk`	Display storage devices and mount points	`lsblk`
8	`mkdir`	Create new directories	`mkdir my_folder`
9	`mount`	Attach filesystem to a directory	`mount /dev/sda1 /mnt`
10	`pwd`	Display current working directory path	`pwd`
11	`rmdir`	Delete empty directories only	`rmdir empty_folder`
12	`tree`	Display directory structure visually	`tree -a ./GFG`

find — Most powerful search command in Linux. Searches recursively by name, type, size, or permissions. Every DevOps Engineer uses this for log hunting on production servers.
tree — Visual folder hierarchy — instantly shows entire directory structure at a glance.
du -h — Human readable disk usage. Essential for identifying folders consuming excess storage.
lsblk — Shows all block devices and partitions. Critical for storage and disk management.
mount — Attaches storage devices to filesystem. Important system administration command.
rmdir vs rm -r — rmdir only removes empty directories. rm -r removes directories with content — use carefully!
dirs — Tracks directory navigation history. Works with pushd and popd for advanced navigation.

Part of my 100 Days DevOps & Cloud Engineering Challenge Follow my journey: LinkedIn