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In this Linux tip, you'll learn two checksum commands -- one that provides an easy way to compare a copy of a file to the original, and one that computes a 256-bit checksum that is cryptographically secure.
In this Linux tip, learn an easy way to do math on the command line using double parentheses. This construct is often used in scripts, but also works just fine on the command line.
The cut command offers many ways to extract portions of each line from a text file. It's similar to awk in some ways, but it has its own advantages and quirks.
In this Linux tip, learn how to use the shuf command -- short for “shuffle”. It randomly rearranges lines from a file or output that is sent to it.
The awk command provides a lot more than simply selecting fields from input strings, including pulling out columns of data, printing simple text, evaluating content – even doing math.
In this Linux tip, learn how to use the nl command. It stands for “number lines” and it does just that.
Systemd and the systemctl command play vital roles in most of today's Linux systems. This post explains commands for peering into some aspects of how they work.
An executive order issued in May by the Biden Administration has elevated the status of the software bill of materials, by mandating their use in federal government contracting.
Here are easy ways to list upgrades available for installed packages on Fedora, Ubuntu and related Linux systems.
