H*e*l*p Needed

[Tom Droege <tdroege2@earthlink.net>]

I keep forgetting that the server won't let you use certain words in the 
subject line.  I don't see why.  It is a pain.

I have a bunch of data where I wrote the wrong values into CRVAL1 and 
CRVAL2.  I need to do a global edit on the files.

OK, I have learned some things about perl and shell scripts.  So I can 
march the files through a process.

Last time I needed to do this,        perl -p -i -e 's/foo/goo/g' 
*.fits     did the job.  This is because I needed to change one specific 
thing to another specific thing.  Now I need to change CRVALs which may 
have any value to a specific value.  OK this is no doubt 1st grade perl but 
I am still in kindergarten.  Someone who knows will save me spending a 
couple of days trying to decode sequences like ./*\a@\n&$/  which seem to 
make perl programmers very proud when they write them.

Tom Droege