Small tip for people often using sed for substitutions: In the process of porting my old wordpress blog posts to Jekyll I had to do a lot of substitutions. Specifically I had to substitute a lot of HTML Tags. Sadly, sed in most Linux distributions doesn’t support lazy regex quantifiers. When searching for an expression which is only known to begin with <code and end with > and a lot of possibilites between those delimiters, it’s really annoying to not have lazy quantifiers.
That’s why I’d recommend using perl for this. Perl can easily be used like sed:
I really prefer the Regex handling of perl over the limited one of sed. That’s why I totally fell in love with this.