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Working with image files on the Linux command line

There's a lot to learn about image files on the command line, from verifying file format to finding out where and when photos were taken and maybe even getting an unusual view of what they look like.

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Commands and settings for managing user accounts on Linux

To manage user accounts on Linux systems, you'll need to be familiar with some important files and commands.

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How to use the tree command

In this Linux tip, we’re going to look at the tree command. It’s a command that displays the files and subdirectories in whatever directory you ask it to display – and it does it in a surprisingly graphical way.

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Linux files: creating, listing, updating, and more

Linux provides a number of handy commands for managing file permissions, understanding who has access to the files and checking on file content.

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How to use the mkdir command

In this Linux tip, we’re going to look at a mkdir command that will create a complex directory structure in one step.

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Using the Linux locale command

The locale settings on Linux systems can sync dates and times with where you are in the world.

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Creating and removing directory structures on Linux

A few clever Linux commands can make it a lot easier to create, view and remove complex directory structures.

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How to use the zdiff command

In this Linux tip, we’re going to look at the zdiff command. It’s a command that allows you to view the differences between 2 gzipped files – differences in the content that was compressed.

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Using the ss command on Linux to view details on sockets

The ss command on Linux systems can provide extensive details on the sockets that provide communications between systems. This article describes ss and some of the many options available to you.

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How to use the wall command

In this Linux tip, we’re going to look at the wall command. The name is short for “write all” and it provides a way for messages to be sent to all logged in users. On some Linux systems (like Fedora), this requires the use of sudo.

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7 ways to look at network connections on Linux

Linux provides a number of commands for examining network connections and sometimes creates new ones to expand functionality.

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How to use the zipcloak command

In this Linux tip, we’re going to look at the zipcloak command that you can use to encrypt a zip file so that it is password-protected.

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Converting numbers on Linux among decimal, hexadecimal, octal, and binary

Linux provides commands for converting numbers from one base to another. Learn how to uses these commands and how to make the process easier with scripts and aliases.

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Linux bash tips: Many ways to loop using bash

There are many ways to loop through data on Linux using bash and many ways to generate the data to be looped through.

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Commands for finding out if compressed Linux files are the same

The zdiff and zcmp commands can see if Linux files differ and if so, how.

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How to use the TR command

In this Linux tip, we’re going to look the tr command (translate) that is used to replace or remove characters in strings or files.

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Using the zip and zipcloak commands on Linux

The highly compatible zip, unzip and zipcloak commands on Linux can help you create encrypted zip files and extract their contents as needed.

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How to use the whatis command

In this Linux tip, we’re going to look at the whatis command. It’s a helpful command that will give you a one-line description of any command that you ask about.

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