TryHackMelinuxContinue your learning Linux journey with part two. You will be learning how to log in to a Linux machine using SSH, how to advance your commands, file system interaction.
Switch user with -l or –login flag, which starts a shell similar to the actual user logging into the system:
su -l user2
IMPORTANT DIRECTORIES
/etc
System files used by the OS. Important: passd, shadow (used to show the user passwords are encrypted using sha512), sudoers, sudoers.d (list of users that have permission to run sudo or a set of commands as the root user).
/var (variable data)
Stores data that is frequently accessed or written by services or applications. Log files (/var/log), databases: backups, log, opt, tmp.
/root
The home for the ‘root’ system user and NOT /home/root
/tmp (temporary)
Is volatile, once we restart the computer everything written here is deleted, similar to memory on our computers (RAM). Any user can write to this folder by default.