Dec 11, 2023 · Dec 7, 2023 · Dec 10, 2023 · Dec 11, 2023
diff --git a/_docs/kb/articles/check-env-vars-in-conditionals.md b/_docs/kb/articles/check-env-vars-in-conditionals.md

 You are trying to run a specific step only if a variable is set. You are trying to have branching logic in one pipeline.


 This condition determines how values are substituted for variables, when and if referenced variables do not exist in the pipeline definitions. In such cases, Codefresh retains the variable name string as-is, without substituting it with a value.


 The following condition:

  {% raw %}

    ```yaml
      'includes("${{CF_RELEASE_TAG}}", "{{CF_RELEASE_TAG}}") == true'
    ```
  {% endraw %}

 evaluates to `true` if `CF_RELEASE_TAG` does not exist, and `false` if it does exist.

 ## Details

 1. Using the following syntax, you can check whether a variable exists for the current build:

 3. If desired, you can combine multiple checks.

 ## Related Items

 [Conditional Execution of Steps]({{site.baseurl}}/docs/pipelines/conditional-execution-of-steps/)

 ## Related Items
 [Conditional execution of steps]({{site.baseurl}}/docs/pipelines/conditional-execution-of-steps/)
Original file line number	Diff line number	Diff line change
Expand Up		@@ -15,6 +15,21 @@ support-reviewed: 2023-04-18 LG

		You are trying to run a specific step only if a variable is set. You are trying to have branching logic in one pipeline.


		This condition determines how values are substituted for variables, when and if referenced variables do not exist in the pipeline definitions. In such cases, Codefresh retains the variable name string as-is, without substituting it with a value.


		The following condition:

		{% raw %}

		```yaml
		'includes("${{CF_RELEASE_TAG}}", "{{CF_RELEASE_TAG}}") == true'
		```
		{% endraw %}

		evaluates to `true` if `CF_RELEASE_TAG` does not exist, and `false` if it does exist.

		## Details

		1. Using the following syntax, you can check whether a variable exists for the current build:
Expand DownExpand Up		@@ -45,6 +60,7 @@ You are trying to run a specific step only if a variable is set. You are trying

		3. If desired, you can combine multiple checks.

		## Related Items

		[Conditional Execution of Steps]({{site.baseurl}}/docs/pipelines/conditional-execution-of-steps/)

		## Related Items
		[Conditional execution of steps]({{site.baseurl}}/docs/pipelines/conditional-execution-of-steps/)