Backup

Oct 282006
 

rsync is a replacement for rcp (and scp) that has many more features. It uses the "rsync algorithm" which provides a very fast method for remote files into sync. It does this by sending just the differences in the files across the link, without requiring that both sets of files are present at one of the ends of the link beforehand.

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 Posted by at 8:01 pm
Oct 272006
 

Most of the people want to know about the backups because one of the other day you will definitely need backup of your data.There are many different types of backups and here i try to cover some of them.If something is missing or something need to be added to this article you can post your suggestions.

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 Posted by at 9:20 pm
Oct 262006
 

The ‘ dd ‘ command is one of the original Unix utilities and should be in everyone's tool box. It can strip headers, extract parts of binary files and write into the middle of floppy disks; it is used by the Linux kernel Makefiles to make boot images. It can be used to copy and convert magnetic tape formats, convert between ASCII and EBCDIC, swap bytes, and force to upper and lowercase.

For blocked I/O, the dd command has no competition in the standard tool set. One could write a custom utility to do specific I/O or formatting but, as dd is already available almost everywhere, it makes sense to use it.

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 Posted by at 10:36 am
Oct 242006
 

Like dd, dd_rescue does copy data from one file or block device to another.dd_rescue is a tool to help you to save data from crashed partition. It tries to read and if it fails, it will go on with the next sectors where tools like dd will fail. If the copying process is interrupted by the user it is possible to continue at any position later. It can copy backwards.

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 Posted by at 9:07 am
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