In linux, a link is a connection between a file name and the actual data on the disk. We can also call it a shortcut. There are two types of links:- Soft Link and Hard Link Soft Link Links will be...

Linux Environment variable is a dynamic-named value, which may be used by one or more programs running. It can also be defined as a set of Rules and Values to build an environment. Syntax: VARIA...

Wildcards are characters that can be used as a substitute for any of a class of characters in a search. Suppose there are hundreds and thousands of files and we have to find only xml files then in...

Pipes are used to redirect a stream from one program to another program. The output of one command redirect it to the input of another. It allows us to combine multiple commands. Pipe Syntax We us...

grep stands for Global Regular Expression Print. This command is used to search for particular string or keyword from a file and print those lines matching a pattern in the shell. It checks line by...

A text editor which allows us to create and manipulate data in linux files. Most Common Kyes in VI Edidor i: Insert O: Insert on next line a: insert after a space Esc: Escape out of any m...

Everything in Linux is a File Even the basic commands that we use are stored as a file in the linux system. We can see where those files are located using the `whereis` command: For eg:- ``` Inpu...

Inside the linux terminal:- the $ represents the normal user the # represents the root or admin user To check the hostname we can use the hostname command For E...

In Python, a decorator takes a function and adds some functionality and returns it. Everything in python is an objects. In Python, everything is an object—yes, including classes. Simply said, name...

Nested Function When a function is defined inside another function, then it is called Nested Funciton. The Nested Function can access the variables of the enclosing scope. In Python, these non-ocal...