Copy files with tar:
tar cf - * | ( cd /target; tar xfp -)
Backup and a restore a mySql database:
mysqldump -u username -ppassword database_name > FILE.sql
mysql -u username -ppassword database_name < FILE.sql
Figure out which process is “grabbing” a drive you want to unmount (from Donncha):
# umount /media/disk/ <br/>
umount: /media/disk: device is busy <br/>
# fuser -m /dev/sdc1 <br/>
/dev/sdc1: 538 <br/>
# ps auxw|grep 538 <br/>
donncha 538 0.4 2.7 219212 56792 ? SLl Feb11 11:25 rhythmbox <br/>
Sometimes when pasting code in vi, it over-indents. Vim.org has the answer for this:
All you need to do is “set paste”, then paste your stuff, and then “set nopaste” again.
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