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FWIW: I use sed all the time to edit XML files. I wouldn't say I have any really large files (which is why i didn't respond earlier) but it works great for me. Regular expressions are your friend. -- Edward M. Corrado On Jun 10, 2012, at 19:25, stuart yeates <[log in to unmask]> wrote: > On 09/06/12 06:36, Kyle Banerjee wrote: > >> How do you guys deal with large XML files? > > There have been a number of excellent suggestions from other people, but it's worth pointing out that sometimes low tech is all you need. > > I frequently use sed to do things such as replace one domain name with another when a website changes their URL. > > Short for Stream EDitor, sed is a core part of POSIX and should be available pretty on much every UNIX-like platform imaginable. For non-trivial files it works faster than disk access (i.e. works as fast as a naive file copy). Full regexp support is available. > > sed 's/www.example.net/example.com/gI' < IN_FILE > OUT_FILE > > Will stream IN_FILE to OUT_FILE replacing all instances of "www.example.net" with "example.com" > > cheers > stuart > -- > Stuart Yeates > Library Technology Services http://www.victoria.ac.nz/library/