Linux Tips & Tricks:

Linux Tips & Tricks:
Surviving systemd - "Where the hell are my logs?!"

At some point even casual Linux users are going to want to have a look at their system logs for one reason or another. It's an important part of many diagnostic processes. However, most of the how to's out there on the Internet are geared towards using the UNIX style system logs that Linux used for decades until it was struck with the plague that is systemd. If your system uses systemd, and these days nearly all do, then all of your nice, easily readable and grep'able text logs are gone! What to do. Well, those logs have nearly all been replaced by a binary journal that systemd keeps in a database. To access them you'll need to learn to use journalctl which is systemd's front end to the log database. Here's a nice tutorial to get you started on the basics of using it.
For the impatient, you can type the following to see what's been logged since yesterday. Be prepared for a deluge.
From a root shell:
journalctl --since yesterday
(Note the ^ double dash)


#Linux   #systemd   #Logs   #sysadmin  
https://www.digitalocean.com/community/tutorials/how-to-use-journalctl-to-view-and-manipulate-systemd-logs

Linux Tips & Tricks - Bash shell pitfalls

Linux Tips & Tricks - Bash shell pitfalls

In my ongoing quest to get people to either start using the command line, or use it more effectively, here's a great little resource for using the most common Linux command shell.

#sysadmin #Linux #CommandLine #bash

Via Carlos F. Lange​
http://mywiki.wooledge.org/BashPitfalls