Comparing files and directories with the diff and comm Linux commands
There are a number of ways to compare files and directories on Linux systems. The diff, colordiff, and wdiff commands are just a sampling of commands that you're likely to run into. Another is comm. The command (think "common") lets you compare files in side-by-side columns the contents of individual files.Where diff gives you a display like this showing the lines that are different and the location of the differences, comm offers some different options with a focus on common content. Let's look at the default output and then some other features.Here's some diff output — displaying the lines that are different in the two files and using < and > signs to indicate which file each line came from.To read this article in full, please click here

IHS Markit also reported drops in SD-WAN revenue for Huawei and InfoVista, but these could simply be reflections of quarterly variations in contracts.
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AT&T said it will still use its own cloud-based connectivity platform but it will work with WING so IoT customers have a single portal to manage their devices.
Newly discovered capabilities mean hackers can snoop on web traffic and execute man-in-the-middle attacks before killing the device.
Having digital twins that learn at the edge can help ease concerns over data custody, confidentiality, and privacy as major cloud vendors deliver more machine learning-based insights to the edge.
The fine is set to resolve ZTE's trade violations, but could open the door for China's approval of Qualcomm's pending NXP acquisition.
The managed SD-WAN service allows BT’s enterprise customers to design, deliver, and evolve their SD-WAN. It improves upon BT's previous attempt to bootstrap old Cisco routers and IWAN to create an SD-WAN overlay.