The shell Packer provisioner provisions machines built by Packer using shell scripts. Shell provisioning is the easiest way to get software installed and configured on a machine.
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# Local Shell Provisioner
Type: `shell-local`
The local shell provisioner executes a local shell script on the machine
running Packer. The [remote shell](/docs/provisioners/shell.html)
provisioner executes shell scripts on a remote machine.
## Basic Example
The example below is fully functional.
```javascript
{
"type":"shell-local",
"command":"echo foo"
}
```
## Configuration Reference
The reference of available configuration options is listed below. The only
required element is "command".
Required:
*`command` (string) - The command to execute. This will be executed
within the context of a shell as specified by `execute_command`.
Optional parameters:
*`execute_command` (array of strings) - The command to use to execute the script.
By default this is `["/bin/sh", "-c", "{{.Command}"]`. The value is an array
of arguments executed directly by the OS.
The value of this is
treated as [configuration template](/docs/templates/configuration-templates.html).
The only available variable is `Command` which is the command to execute.
