Your Question: What Is Declare Command in Linux?

The declare is a builtin command of the bash shell. It is used to declare shell variables and functions, set their attributes and display their values.

What does declare do in shell?

‘declare’ is a bash built-in command that allows you to update attributes applied to variables within the scope of your shell. In addition, it can be used to declare a variable in longhand.

How declare variable in Linux?

Variables 101

To create a variable, you just provide a name and value for it. Your variable names should be descriptive and remind you of the value they hold. A variable name cannot start with a number, nor can it contain spaces. It can, however, start with an underscore.