@Chaos extension
The symbol {
(i.e., the left bracket, which must not be confused with the bracket [
or parentheses (
)) ... does not need to be escaped.
You probably want to remove all curly braces. The percent sign must be before 's', not after. This means performing a search in all ranges.
So just do:
:%s/{//g :%s/}//g
Done!
You should consider reading on VIM bands. For example, to make replacements in the current line and up to 10 lines down, you can do:
:.,.+10s/}//g
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