Shell script multi-line comment

Question

I am having a large shell script file. At times while doing modification I want to comment out part of it. But commenting line as shown in the below example is giving me e

Answer 1

Using here docs to comment code is safe and elegant like this:

: <<'EOT'
Example usage of the null command ':' and the here-document syntax for a 
multi-line comment.  If the delimiter word ('EOT' here) is quoted, the 
here-document will not be expanded in any way.  This is important, as 
an unquoted delimiter will result in problems with unintended potential 
expansions.  All of this here-doc text is redirected to the standard input 
of :, which does nothing but return true.  
EOT