Tags: SysAdmin

Linux Commands for Measuring Disk Activity

Linux systems provide a handy suite of commands for helping you see how busy your disks are, not just how full. In this post, we examine five very useful commands for looking into disk activity. Two of the commands (iostat and ioping) may have to be added to your system, and these same two commands...
Read 0 Comments

prairie-path_1920.jpg

shortcut
Linux shells let you chain commands together to carry out sophisticated operations in one fell swoop and create aliases to act as shortcuts.

Aliases: To Protect and Serve

Happy 2019! Here in the new year, we’re continuing our series on aliases. By now, you’ve probably read our first article on aliases, and it should be quite clear how they are the easiest way to save yourself a lot of trouble. You already saw, for example, that they helped with muscle-memory, but...
Read 0 Comments

Linux timeout Command Explained for Beginners (with Examples)

Sometimes, when you execute a command in Linux, you might want to run it for a set amount of time. There exists a command line utility - timeout - that's specifically developed for this purpose. In this article, we will discuss the basics of this command using some easy to understand examples. But...
Read 0 Comments

Troubleshooting Hardware Problems in Linux

It can take some time to troubleshoot and solve hardware-related issues on Linux. Even highly experienced sysadmins sometimes spend hours working to solve mysterious hardware and software discrepancies. The following tips should make it quicker and easier to troubleshoot hardware in Linux. Many...
Read 0 Comments

terminals_main.jpg

terminals
Jack looks at four different terminal emulators -- that not only get the job done but also add a little fun.

4 Unique Terminal Emulators for Linux

Let’s face it, if you’re a Linux administrator, you’re going to work with the command line. To do that, you’ll be using a terminal emulator. Most likely, your distribution of choice came pre-installed with a default terminal emulator that gets the job done. But this is Linux, so you have a wealth...
Read 0 Comments

jodi-mucha-540841-unsplash.jpg

aliases
Learn how to create aliases -- commands you build yourself by packing them with other instructions that are too long or too hard to remember.

Aliases: DIY Shell Commands

Aliases, in the context of the Linux shell, are commands you build yourself by packing them with combinations of other instructions that are too long or too hard to remember. You create an alias by using the word alias, then the name of the command you want to create, an equal sign (=), and then...
Read 0 Comments

How (and Why) to Get Ready for 802.11ax

802.11ax will dominate the Wi-Fi-infrastructure landscape. Here's why--and what you need to do to get ready for 802.11ax. With the steady advances in wireless LAN (WLAN) technologies during the past two decades--remember, the first 802.11 standard of 1997 specified just 1 and 2 Mbps throughput--it’...
Read 0 Comments

wynand-van-poortvliet-40467-unsplash.jpg

Bash
Get to know your shell environmental variables in this tutorial for beginners.

Bash Variables: Environmental and Otherwise

Bash variables, including those pesky environment variables, have popped up several times in previous articles, and it’s high time you get to know them better and how they can help you. So, open your terminal window and let's get started. Environment Variables Consider HOME. Apart from the cozy...
Read 0 Comments

What's New in Bash Parameter Expansion

The bash man page is close to 40K words. It's not quite War and Peace, but it could hold its own in a rack of cheap novels. Given the size of bash's documentation, missing a useful feature is easy to do when looking through the man page. For that reason, as well as to look for new features,...
Read 0 Comments

6 Methods To Rename Multiple Files At Once In Linux

As you may already know, we use mv command to rename or move files and directories in Unix-like operating systems. But, the mv command won’t support renaming multiple files at once. It can rename only one file at a time. Worry not. There are few other utilities available, especially for batch...
Read 0 Comments

Pages

Click Here!