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Carles Xavier Munyoz Baldó schrieb: | Hi, | I have a 1 GigaByte size file and want to remove some bytes from it. | For this I must follow the next steps: | (1) Create a new file. | (2) Copy into it the bytes I will left from the original file. | (3) Remove the original file. | (4) Move the new file to be the original file. | | The problem with this process is that it uses lot of disk I/O. | Actually only one disk block of the file is modified. | Is there any other way to do that using an ext3 file system ?
um, use and editor for doing things like this? *gg* you'll need a proper editor and lots of RAM anyway....
or try "dd". it can seek to a given block number and then copy out the bits you want to have.
Christian.
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