sed novice requests assistance

[sharkura]

I am trying to learn sed to automate some very boring editing that tends to follow a pattern.

For example, I have a set of Java files that require a standard header to be inserted. Some have no header, and some have an older, outdate version of the standard header.

So, I want to delete everthing up to but not including the the package statement, and insert the new header. For example, given the file

/**
 * Old standard header
 */
package a.b.c;

import d.e.f.SomeClass;

public class SomeOtherClass
{
  public static void main( String[] args )
  {
  }
}

I would like to delete the old header and insert the new header.

Most of what I see as examples would seem to be based around the sed command:

1,/package/ d

However, that deletes the package line. I have tried variations that attempt to put the package line in the hold buffer, but it is clear to me that I don't understand what is going on there. Finally, if I include my insert statement in a block ending with the delete, it gets printed multiple times, but the package statement still does not get reprinted.

If I can solve this, I hope to generalize it to add a set of comments to methods that are concrete implementations of an abstract method in a set of concrete subclasses, so the method names and signatures are identical. Again, some have invalid method header comments, and some have no comments, but our ferschlunginger SDP requires a specific style of comments.

I'm tired of doing the cut and paste routine. Help me get my computer to do the work for me.

Thanks,

¦ {Þ

[sharkura]

Ahh, of course, no sooner than I posted than I figured it out. First rape, then pillage, THEN burn, as the old viking said to the youngster.

¦ {Þ