Drew Tomlinson wrote:
Matthew Seaman wrote:
% perl -p -e 's/cn=([^ ,]+) ([^,]+),/cn=$2 $1,/' < foo.txt
I still don't really understand *why* the above works but I'm trying to pick it apart now.
The RE breaks down like this:
/cn=([^ ,]+) ([^,]+),/
cn= Match literal text 'cn='
( capture #1 begin
[^ ,] Character class: anything that is not space or comma
+ At least one of the above
) end capture #1
Match a literal space
( capture #2 begin
[^,] Character class: anything that is not a comma
+ At least one of the above
) end capture #2
, Match literal comma
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
signature.asc
Description: OpenPGP digital signature
