You see an s instead of x in the file permissions? Linux has some special file permissions called SUID, GUID and Sticky Bit. Know more about them.| Linux Handbook
Every user in Linux has a unique, numeric user ID and a default group with a unique numeric group ID. The id command prints this information.| Linux Handbook
As a sysadmin, you'll often need to list all the users on your Linux system. Learn how to list all users in the Linux command line.| Linux Handbook
Here are five commands that let you view the content of a file in Linux terminal.| Linux Handbook
You can get file permissions, size, mtime, ctime, atime, ownership and several other file attribute information using the stat command in Linux.| Linux Handbook
Linux file permissions explained in simpler terms. Also learn how to change the file permissions and ownership in Linux in this detailed beginner's guide.| Linux Handbook