Turn tabs into spaces on Linux and vice versa

The Linux expand and unexpand commands can turn tabs into spaces and spaces into tabs, and the sed and awk commands can help.

New Year's resolutions for Linux sysadmins in 2022

The beginning of a new year is always a good time to review what has gone well and not so well and make decisions about how you want to improve your work and your life.

Use dmseg to check your Linux system's kernel message buffer

While the dmesg command can display the entire contents of the Linux kernel message buffer there are ways to have it choose just what you want to see.

Using the cheat command on Fedora Linux

The cheat command, available for installation on many Linux systems, provides an easy way to make cheat sheets available for hundreds of commands.