11 dangerous Linux terminal commands every Linux user must be aware of (don't run).

1. Recursive deletion 🔁🗑️

This is one of the scariest commands. When you run this command, it deletes everything in the root directory forcibly and recursively. As a result, all of your directories and subdirectories will be deleted, and all of your data will be lost.

2. Implode hard drive 🕳️

This command will move all data to a special location in Linux known as the black hole, which is located in your system at /dev/null.

Everything that is moved to this location is destroyed.
As a result, if you accidentally move your data to this folder, it will not be recovered

3. The fork bomb 🍴💣

This is my personal best, a simple bash recursive function that, when executed, creates copies of itself, which in turn creates another set of copies of itself. This takes up CPU time and memory. As a result, it loops until the system freezes.

90+ Linux commands that Linux sysadmins and power Linux users regularly use. (with explanation) ↓🐧

1. ip - used to show or manipulate routing, devices, and tunnels.
2. ls - list the contents of a directory.
3. df - Displays the amount of disk space used.
4. du - display a list of all the files along with their respective sizes.

5. free - use to get a detailed report on the system's memory usage.
6. scp - securely copy files or directories over ssh.
7. find - locates files using user-defined criteria.
8. ncdu - provides a useful and convenient way to view disk usage.

9. pstree - used to show running processes in a tree (data structure).
10. latest - displays a list of the most recently logged-in people.
11. w – display a list of the currently logged-in user sessions.

12. grep - searches a file for a pattern of characters and displays all lines that match.
13. awk - a scripting language used for text processing.
14. sed - stream editor used to perform lots of functions on files, like searching, find and replace, insertion, or deletion.