Shell Programming and Scripting

Hi i got many files which look like this:

relation:
xxxxxx
birthday:
xxxxxx
age:
xxxxxx
livingsituation:
xxxxxx
place:
xxxxxx
school:
xxxxxxx
job:
xxxxxxx
but i also got other files which look like this:

relation:
xxxxxx
age:
xxxxxx
livingsituation:
xxxxxx
place:
xxxxxx
job:
xxxxxxx in which xxxxxx is variable

My problem is that all files should get the same order, as you can see in the example above, school is left out in the second file.

Now i need something which checks whether there is a certain line in the file, like school or birthday, and if not, that school or birthday is inserted. And plus that there should also be an empty line inserted under the word just inserted.

So actually the second file should look, after processing in shell script, exactly like the first one.

Any ideas? thanks

does the order differs ? for example if birthday: and school: are entered at the bottom of the file is it OK ?

Thanks big, for replying but i got it already, in most cases creativity does the job!

jorrit

would be nice to share the solution so others can benefit in future when they search for similar problem

most welcome jorrit.