Traceroute is a useful command as it lets you understand the routing of a connection. The utility can help you figure out your network better and also find out issues if there is any. In simple words, Traceroute, when used, prints out the complete routing of a request from origin to destination.
In the Linux world, General Regular Expression Parser or grep is one of the most powerful commands used by every Linux administrator. Using it, you will be able to search files content and also perform a search within the command output: not just that, but a lot more, which we will be discussing in this tutorial.
SED command helps you in performing various tasks on a text file such as updating, deleting, searching and inserting text. One of the strong features is it supports using regular expressions. Also, it lets you edit files without even opening the file.
When discussing Linux and Unix with average users, it's not uncommon that they will sometimes mistakenly interchange the terms Linux and Unix. The two are not the same. Though they share similarities in their overall structures and toolkits, they are decidedly not the same.
Most Linux users, both veterans, and newbies, often get confused about what the difference between the Linux commands apt, and apt-get are and when they should use one or the other.
Linux Terminal comes with a handy feature called "history." Every command entered in the terminal gets saved in a file called ".bash_history." A history file is created for each user and can be found in the user's home directory, for example, "/home/username/.bash_history."