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Linux and Unix Backup and Restore

Tutorials, howtos, and general Linux / Unix tips about Backing and restoring the systems. This section guides sys admin with backing up data to enable recovery from data loss. ( rss feed )

Q. When I run tar command it fails with an error that read as follows:

tar: /dev/st0: Cannot write: Invalid argument

How do I fix this error under CentOS / Debian / Fedora / RHEL Linux HP server systems?
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Q. I've backup created using rsync command stored at /disk2/home/tom/ directory. Accidentally, I had deleted files from /home/tom directory. I'd like to restore all file names starting with alpha numeric characters from /disk2/home/tom/ to /home/tom. How do I restore selected files in a batch mode?
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Q.I'm Ubuntu Linux user and I'd like to keep backup of my email and mail settings. How do I backup Thunderbird mail and profile under any Linux distribution?
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How can I import a MySQL dumpfile into my database? I'm using CentOS Linux 5 server. My old hosting provider gave me a data.sql file and I do have access to my Unix / Linux server via ssh. So How do I restore my data using command line over the ssh session?
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