> For the complete documentation index, see [llms.txt](https://linux-tutorial-cli.gitbook.io/linux-cli-tutorial/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://linux-tutorial-cli.gitbook.io/linux-cli-tutorial/txt-files/declare.md).

# declare

## declare

The `declare` command in Linux is used to declare variables and set their attributes. It is a builtin command in the Bash shell.

The `declare` command is used in the following syntax:

```
declare [options] name [value]
```

The `name` is the name of the variable that you want to declare.

The `value` is the value of the variable.

The options can be used to specify the following:

* `-a` : The variable is an array.
* `-i` : The variable is an integer.
* `-f` : The variable is a function.
* `-r` : The variable is read-only.
* `-x` : The variable is exported.

For example, the following code will declare a variable named `name` and set its value to `John Doe`:

```
declare name="John Doe"
```

This code will create a variable named `name` and set its value to `John Doe`.

The `declare` command is a simple and useful command that can be used to declare variables and set their attributes. It is a valuable command to know, especially if you use shell scripts or if you frequently use variables in the Bash shell.

Here are some additional things to note about the `declare` command:

* The `declare` command can be used to declare any type of variable.
* The `declare` command can be used to set the attributes of variables.
* The `declare` command is a simple and useful command.

## help

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```