I'm getting a
diff: memory exhausted error when trying to diff two 27 GB files that are largely similar on a Linux box with CentOS 5 and 4 GB of RAM. This is a known problem, it seems.
I would expect there to be an alternative for such an essential utility, but I can't find one. I imagine the solution would have to use temporary files rather than memory to store the information it needs.
- I tried to use
xdelta, but they are better for showing the changes between two files, like a patch, and are not that useful for inspecting the differences between two files.
- Tried VBinDiff, but it is a visual tool which is better for comparing binary files. I need something that can pipe the differences to STDOUT like regular
- There are a lot of other utilities such as
vimdiffthat only work with smaller files.
- I've also read about Solaris
bdiffbut I could not find a port for Linux.
Any ideas besides splitting the file into smaller pieces? I have 40 of these files so trying to avoid the work of breaking them up.