50
votes
2answers
2k views

Why is piping 'dd' through gzip so much faster than a direct copy?

I wanted to backup a path from a computer in my network to another computer in the same network over a 100 Mbit/s line. For this I did dd if=/local/path ...
0
votes
2answers
811 views

Estimate compressed file size in tar.gz

I've got a set of .tar.gz files, which are duplicity backup files (either full backups or incremental ones). I'd like to compute which directories take the most space on backups. This will most ...
0
votes
2answers
2k views

uncompress gzipped encrypted file

I have got a backfile with extension .tar.gz.enc. After fooling around I found out that it is encrypted gzipped tarball. Now I want know how to decrypt it.
0
votes
2answers
1k views

Help on writing Linux script to backup and ftp files to another server

I am using MySQL as the database system for my application on a Linux system. Every week I update the system and take backups (mysqldump) of the databases changed (2 databases). I then .tar.gz them ...