Apply a filter to a list of items

Use "{{ variable | map('', 'filter_option1', 'filter_option2') | list }}"

For example:

"{{ output.stdout_lines | map('regex_replace', '^(\S+)\s.*$', '\\1') | list }}"

Be careful on the context in which you use this. In some cases you must use a single backslash (displaying a variable with debug for example): '\1'