Match single character between Start string and End string

Question

Hello.

I can't seem to understand regular expression at all. How can I match a character which resides between a START and END string. For Example

#START-EDIT

#ValueA=0

#ValueB=1

#END-EDIT

I want to match any # which is between the #START-EDIT and #END-EDIT.

Specifically I want to use sed to replace the matches # values with nothing (delete them) on various files which may or may not have multiple START-EDIT and END-EDIT sections.

Answer 1

^#START-EDIT.*(#) *. *#END-EDIT$

Answer 2

sed is line based. you can easily search, replace based on regex in one line. But there is no really easy way to search/replace on multilines. AWK might do the trick.

If you have the regex on one line, the following command could be what you are looking for

sed -e "/^#START-EDIT.*#END-EDIT$//" myInput.txt