Getting information about your server¶

This is just a cheat sheet for quick reference. No warranty whatsoever.

What operating system is running on this machine:

$ uname -a
$ hostnamectl

For how long has this server been running since book:

$ uptime

Show a list of other system users (only those who can open a shell):

$ grep sh$ /etc/passwd

List of users who are working on this server at the moment:

$ who -Hu

What type of hardware this server is running on:

$ cat /sys/class/dmi/id/sys_vendor
$ cat /sys/class/dmi/id/product_name

What processes are running on this server:

$ pstree -pa 1

See the main system logs:

$ sudo dmesg
$ sudo journalctl

External links: