[Answer]-How can display the lines from linux log file in browser

Try using linebreaks or linebreakbr filters. From django reference

linebreaks
Replaces line breaks in plain text with appropriate HTML; a single newline becomes an 
HTML line break (<br />) and a new line followed by a blank line becomes a paragraph 
break (</p>).

For example:

{{ value|linebreaks }}
  If value is Joel\nis a slug, the output will be <p>Joel<br />is a slug</p>.

You can also use linenumbers

You can try to convert newlines to <br /> tags

There is a Django filter that can be useful https://docs.djangoproject.com/en/dev/ref/templates/builtins/#linebreaks

{{ value|linebreaks }}