#Unix admin for 30 years, I write Unix as a Second Language blog & produce 2-Minute #Linux Tip videos for @NetworkWorld. I live in the mountains in Virginia.
September is designated National Insider Threat Awareness Month, according to a group of federal agencies and tech industry organizations.
The diff, comm, cmp, and colordiff commands are among the many ways to compare text files on a Linux system.
The awk, cut, grep, expr, sed and xargs commands provide many useful options for manipulating text.
After 30 years managing Linux servers, I've found these practices helped me stay focused and effective.
There are a number of spelling assistants you can use on Linux systems, including aspell, enchant-2, look, and grep. Some commands will need to be installed on your system.
Want to do a quick performance check on your Linux system? You might want to take a look at the dstat command.
Linux has a lot of options for displaying dates and times, even for past and future dates. This post explains many of these options and provides examples of what you can expect to see.
There are many ways to clean up or remove files, including using commands such as rm (remove), rmdir (remove directory), shred, and unlink.
Some of the most convenient ‘tricks’ on Linux depend on the use of a handful of special characters. This post looks at a number of command operators on Linux and shows how they work.
The Linux find command makes it easy to find files on your system – even if you don’t remember their names or exactly when you last updated them. Some of the options are a bit more challenging than...
Red Hat has released a number of exciting projects at Red Hat Summit 2024 including the introduction of RHEL AI, enhancements to Red Hat OpenShift AI and more that will provide telcos with powerful...
With contributions from Red Hat and critical collaborators, the safety and security of automotive vehicles has reached a new level of reliability.
There's a lot more to printing from the Linux command line than the lp command. Check out some of the many available options.
The pv command is especially helpful when you are running tasks that take a long time to complete and you want some feedback that displays your progress.
Running processes in the background can be convenient when you want to use your terminal window for something else while you wait for the first task to complete.
Email spoofing is acknowledged by experts as a very credible threat.
These AND and OR equivalents are often used in scripts to make decisions about what happens next. In this post, we’ll take a look at how they work at a very basic level and some ways they are often...
The apropos command on Linux identifies commands that relate to the particular terms that you are asking about – such as files, lists, disks, dates users, accounts, file systems, and a huge pile of...
The shred command is a good option for removing files from a Linux system in a way that makes them virtually impossible to recover.