mkdir — create directories

💬 "mkdir command"

• Concept: Short for Make Directory, it creates a new directory.
• Output structure: On success, it outputs nothing. If a parent folder does not exist, an error occurs.
• Recommended output in practice: To create multiple levels at once, use mkdir -p a/b/c; for folders that need permissions, also use -m.
• Left column: Not applicable — check the permissions of the created folder with ls -ld.
• Right column: Not applicable — if it already exists, a File exists error is printed.

3 Essential Command Combinations

• mkdir build — create a single folder
• mkdir -p releases/2026-10-17/conf — create intermediate paths in one go
• mkdir -m 750 uploads — create with specified permissions

Here are some useful options to know as well.

• -p skips without error even if it already exists
• For locations that need security, such as upload folders, restrict permissions with -m 750

💬 "Show me a real-world example used for server management"

Scenario: The process of creating an upload folder with restricted permissions.

Step 1: Create the folder

Create it with permissions 750.

mkdir -m 750 uploads

Step 2: Check permissions

Check that the permissions are as intended.

ls -ld uploads

Step 3: Add subfolders

Create the necessary subfolders.

mkdir -p uploads/tmp && ls -ld uploads/tmp

Actual execution screen

Example screen showing folders created with mkdir -p and -m.

!mkdir command execution result: created folder structure and permissions

Actual production server

Source (HTML): https://games.aidebatehub.com/programs/linux/filesystem/mkdir.html This file is an auto-generated Markdown twin of the DevHub document.