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 / Unix

Unix

03 Mar 2010 3 minutes read
M
  • UnixmacOSNAS

Mounting NFS Shares on Mac OS X

I’ve recently decided to give Mac OS X a try. For the past week or so I’ve been spending a good few hours a …

Read Full Article
18 Jun 2009 3 minutes read
F
  • Basic stuffScriptsUnix

Fixed Calculations in Unix Scripts

Although I’ve already shown you how to sum numbers up in bash, I only covered the bash way of doing it. I really …

Read Full Article
09 Jun 2009 4 minutes read
C
  • Basic stuffUnix

Command Aliases in Unix Shells

One of the really useful features almost every Unix shell has is support for command aliases – a way to run a command or …

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
17 Feb 2009 2 minutes read
C
  • PerlUnix

Converting Date and Time to Unix Epoch in Perl

Today I was working on a script, and one of the subroutines needed simple seconds-based arithmetics with time. As you …

Read Full Article
18 Sep 2008 1 minutes read
A
  • Basic stuffScriptsUnix

Another Way to Use Math Expressions in Shell Scripts

Today I’d like to expand a bit more on the basic calculations in Unix scripts.

Use Parenthesis to simplify math …

Read Full Article
26 Aug 2008 3 minutes read
U
  • Basic stuffScriptsUnix

Updating Values of Your Shell Variables in Unix

If you’re just getting started with your Unix scripting or new to Unix shell, today’s little tip will make …

Read Full Article
13 Aug 2008 3 minutes read
H
  • How-ToQuestions & AnswersScriptsSolarisUnix

How to Parse Text Files Line by Line in Unix Scripts

I’m finally back from my holidays and thrilled to be sharing next of my Unix tips with you!

Today I’d like …

Read Full Article
16 Jun 2008 3 minutes read
U
  • ScriptsUnix

Unix Scripts: Basic Arithmetic Operations

As I was writing the Time and date in Unix scripts post last week, I’ve realized that there’s one really …

Read Full Article
11 Jun 2008 4 minutes read
U
  • ScriptsUnix

Unix Scripting: Time and Date

If you have followed this blog for a while, you should remember how to use variables in Unix shell scripts.

Going …

Read Full Article
  • 1
  • 2
  • 3

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