Unix Tutorial
  • COMMANDS
    Advanced Unix Commands Basic Unix Commands Linux Commands macOS Commands Solaris Commands
  • VIDEOS
  • REFERENCE
    SSH SElinux tmux Ansible Docker
  • PROJECTS
  • GLOSSARY
  • SOFTWARE
    Homebrew macOS RedHat Linux
Home / Categories / How to

How To

15 May 2009 5 minutes read
Ubuntu SSH - How To Enable Secure Shell in Ubuntu
  • how-tocentos

Ubuntu SSH: How to Enable Secure Shell in Ubuntu

SSH (Secure Shell) is possibly the best way to remotely access a Unix system – it’s very secure thanks to …

Read Full Article
11 May 2009 2 minutes read
H
  • Basic stuffHow-ToLinux

How to Confirm Disks Capacity in Linux

show disk size in Unix is a very popular request visitors use to arrive at my Unix Tutorial pages. Since I never …

Read Full Article
08 May 2009 4 minutes read
H
  • how-to

How to Confirm if Your CPU Is 32bit or 64bit

I had to download a piece of software today for one of the servers which I haven’t used in a while.

Read Full Article
16 Apr 2009 3 minutes read
H
  • How To

How To: Find Usernames of at Least Four Characters

I’ve recently been asked a few questions about identifying users on your Unix system using various criteria, so …

Read Full Article
06 Mar 2009 2 minutes read
H
  • How-To

How to Identify What Unix Groups Are Available on Your System

Today, I’d like to answer one of the oldest questions I have in my incoming UnixTutorial questions  email folder. …

Read Full Article
25 Feb 2009 2 minutes read
U
  • Basic stuffHow-ToScriptsUnix

Unix Scripts: How to Sum Numbers Up

If you’re ever thought of summing up more than two numbers in shell script, perhaps this basic post will be a good …

Read Full Article
13 Feb 2009 3 minutes read
H
  • Basic stuffHow-ToLinux

How to Monitor Linux Memory Usage With Watch Command

Hi all, today I’m going to teach you not one, but two really cool things in one post! First, I’ll introduce …

Read Full Article
09 Feb 2009 6 minutes read
H
  • how-to

How to Change Ownership of Files and Directories in Unix

I’ve just been asked a question about changing the ownership of files from one Unix user to another, and thought …

Read Full Article
21 Jan 2009 9 minutes read
U
  • how-to

Ubuntu Upgrade: From Hardy Heron to Intrepid Ibex

I’ve been upgrading Ubuntu installations quite a few times recently, and thought it makes sense to post a really …

Read Full Article
09 Jan 2009 3 minutes read
H
  • Advanced topicsHow-ToSolaris

How to See Future File Timestamps in Solaris

I know I’ve spoken about timestamps already, but I’d like to further expand the topic.

While there’s a …

Read Full Article
  • 10
  • 11
  • 12
  • 13
  • 14

Get in Touch

IT Consultancy

I'm a principal consultant with Tech Stack Solutions. I help with cloud architectrure, AWS deployments and automated management of Unix/Linux infrastructure. Get in touch!

Search

Recommended

Agentic Coding School

Educative

Recent Articles

The ansible-vault decrypt command followed by its successful decryption result

How to decrypt files with Ansible Vault

ansible-vault decrypt restores an encrypted file …

A two-step terminal guide using pgrep to find a PID and footprint to inspect that process

Just discovered the macOS footprint command

I’ve administered Linux systems for around 25 …

APT showing held-back Ubuntu packages followed by apt full-upgrade resolving them

How to Fix Ubuntu Packages Held Back

When trying to run do-release-upgrade on an Ubuntu …

A Linux filesystem growing from 20GB to 40GB with growpart and resize2fs

How To Resize Filesystem with resize2fs

Quick note on filesystem resize on a typical …

macOS Tahoe

macOS Tahoe

macOS Tahoe is the upcoming major release of macOS …

Bash history configuration for readable timestamps shared between terminal sessions

Centralized Bash history with timestamps

BASH is my Linux shell of choice (it’s zsh on …

The macOS fs_usage command showing filtered filesystem activity

Inspect filesystem operations with fs_usage in macOS

hey Unless you disable SIP, most of DTrace based …

Unix Tutorial
  • About
  • Sitemap
  • UnixTutorial.RU
  • Tech Stack
  • Tech Stack AI
© 2026 Unix Tutorial