With tail, you can view a Linux log file as the system writes to it in real time. So while you’re trying to troubleshoot that system, you can follow the syslog, the auth.log, faillog, kern.log ...

The thing is, Linux keeps a lot of log files. Some are useful to users, while others might not be so helpful. Many apps also install their own log files, so you can troubleshoot a single app.

3. How to Change Default Sudo Log File in CentOS, Fedora. The sudo logs are kept in "/var/log/secure" file in RPM-based systems such as CentOS and Fedora. To set a dedicated sudo log file in CentOS 8, ...

Save Or Write Log Files In RAM Using Log2ram In Linux. The Log2ram script creates a /var/log mount point in RAM. So all log files written in the /var/log folder will not actually be written in the the ...

Log files are the most valuable tools available for Linux system security. The logrotate program is used to provide the administrator with an up-to-date record of events taking place on the system ...

Use the basic tail command to display the last 10 lines of a file. Tail the desired number of lines by specifying the -n option. Learn how to use the +N option to display lines starting from the Nth ...

pv: Outputs file content at a controlled rate, useful for demonstrations. 8. Opening Media Files from the Terminal. To launch media files like images, audio, and video from the terminal, you can use ...

Simplely doing cat to read log files is a basic way to inspect log files, but when you want to filter data in an organized way, like based on date, then grep, awk, and sed are the tools of the hour.

Linux system log files are by default set to rotate. Depending on the age or size, a sequence of files moves back a step, the oldest being removed and a new one taking over as the current log file.