There are plenty linux command which can monitor or configure different aspects and settings of your *NIX based system.
Of course that in the beginning, you don’t want to learn 500 commands and then shuffle parameters from another commands inside the when you use; so today, I’m going to list you the most useful commands on linux systems for a end-user.
1) Top – this command is like the task manager on Windows systems. It provides you a list with all the running tasks. Also, this is the first command you would need to run in your shell if you encounter lag on your machine, so you could get information about what is using you so much ram.
2) ln – this command is like the “Shortcut” in Windows systems. It is also called an alias creator.
3) zip/gzip – zip and gzip are compression algorithms. A compression algorythm is used in softwares that allow you to create so called “archive” files. These commands are usually used to extract single/multiple files from archives. Often, these commands are used in automation shell scripts which run automatic backups on your system. Keep in mind that zip/gzip will decrease your filesize considerably, so you will have more space remaining for personal data.
4) nano – nano is a text editor application which has a shell backend. You can edit text files / configuration files from the shell console.
5) grep – grep is a powerful tool. It is mainly based on regexp (or regular expressions). For linux starters, this command cand be used to search in files for a specified text piece. Keep in mind that this powerful tool can be used in combination with other linux tools!
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