Replace a word with multiple lines using sed?

Question

I\'m working on a bash-script that has to prepare an E-Mail for being sent to a user.

It aggregates some data, which ends up being multiple lines of stuff. For the e

Answer 1

You can put your data in a temp file and run:

$ sed '/_data_/r DATA_FILE' mail.tpl | sed '/_data_/d'> temp; mv temp mail.tpl