Sometimes it happen to have the need of check what’s inside a .tar.gz file archive or perhaps you just need to extract a couple of files from another archive, this is possible you just have to remember all the flags or simply extract all in /tmp and then discard the files that you don’t need.
But there is also a smarter way to do this, use archivemount
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Or scp VS tar+ssh VS rsync+ssh VS tar+netcat
In a previous article in which i’ve show some uses of tar, I made an example of how to use it to move large amounts of data between two computers, but many people have said that it is better, or at least they prefer to use rsync, others prefer to use netcat. I remain convinced that a tar+ssh is faster than rsync+ssh is correct then do a test on the field and see some numbers.
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I recently had to move from one machine to another about 50 GB of data, divided into hundreds of thousands of small files, and i had no additional space on the machine to make a zipped tar and then move it comfortably, I tried a scp, but after 45 minutes it had moved around 2 GB of data, too slow.
And so I started looking at the options a bit more advanced of tar. Continue reading »