Add Bash example for bigip_command

docs/resources/bigip_command.md

@@ -11,36 +11,53 @@ description: |-
 `bigip_command` Run TMSH commands on F5 devices
 
 This resource is helpful to send TMSH command to an BIG-IP node and returns the results read from the device
-## Example Usage
 
+## Example Usage
 
 ```hcl
 resource "bigip_command" "test-command" {
   commands = ["show sys version"]
 }
 
-
-#create ltm node
+# Create ltm node
 resource "bigip_command" "test-command" {
   commands = ["create ltm node 10.10.10.70"]
 }
 
 # Destroy ltm node
-
 resource "bigip_command" "test-command" {
   when     = "destroy"
   commands = ["delete ltm node 10.10.10.70"]
 }
+```
 
-```   
-## Argument Reference
+It is also possible to send Bash commands however care is needed with quoting:
 
-* `commands` - (Required) The commands to send to the remote BIG-IP device over the configured provider. The resulting output from the command is returned and added to `command_result` 
-* `when` - (Optional,possible values:`apply` or `destroy`) default value will be `apply`,can be set to `destroy` for terraform destroy call.    
+```hcl
+resource "bigip_command" "byol-license" {
+  commands = [
+    "bash -c \"cp /config/bigip.license /config/bigip.license.bak.$(date +%s)\"",
+    "bash -c \"echo ${var.license_file_contents_base64} | base64 --decode > /config/bigip.license\"",
+    "bash -c \"reloadlic\""
+  ]
+}
+```
+
+Note that use of single quotes is not supported, thus this will not work:
+
+```hcl
+resource "bigip_command" "hello-world" {
+  commands = ["bash -c 'echo hello world'"]
+}
+```
+
+## Argument Reference
 
+* `commands` - (Required) The commands to send to the remote BIG-IP device over the configured provider. The resulting output from the command is returned and added to `command_result`
+* `when` - (Optional, possible values: `apply` or `destroy`) default value will be `apply`,can be set to `destroy` for terraform destroy call.
 
 ## Attributes Reference
 
 In addition to all arguments above, the following attributes are exported:
 
-* `command_result` - The resulting output from the `commands` executed
+* `command_result` - The resulting output from the `commands` executed.