cp -a fs/ext{2,69} cp -a include/linux/ext{2,69}_fs.h cp -a include/linux/ext{2,69}_fs_i.h cp -a include/linux/ext{2,69}_fs_sb.h for i in fs/ext69/* include/linux/ext69*; do vi '-cse ext|%s/(ext|EXT)2/\169/g|x' $i; done vi '-c/EXT/|y|pu|s/2/69/|s/Second/FUBAR/|x' fs/Config.in vi '-c/ext2/|y|pu|s/ext2/ext69/g|//|y|pu|&g|//|y|pu|&g|//|y|pu|&g|x' \ include/linux/fs.h

had done the trick last time I needed something like that, but that was long time ago...

- Al Viro explaining some simple commands on linux-kernel