lineinfile - Ensure a particular line is in a file, or replace an existing line using a back-referenced regular expression

See also

• https://docs.ansible.com/ansible/latest/lineinfile_module.html

• replace - Replace all instances of a particular string in a file using a back-referenced regular expression

• blockinfile - Insert/update/remove a text block surrounded by marker lines

Synopsis

• This module will search a file for a line, and ensure that it is present or absent.

• This is primarily useful when you want to change a single line in a file only . See:

  • the replace module if you want to change multiple, similar lines

  • or check blockinfile if you want to insert/update/remove a block of lines in a file.

  For other cases, see the copy or template modules.