Split
From Linuxintro
split is a command that splits a file into several chunks like this:
# ls hugefile.tar.gz hugefile.tar.gz # split -b 2GB hugefile.tar.gz # ls -ltr [...] -rw-r--r-- 1 username users 5047163622 2012-07-05 05:07 hugefile.tar.gz -rw-r--r-- 1 username users 2000000000 2012-07-05 06:18 xaa -rw-r--r-- 1 username users 2000000000 2012-07-05 06:18 xab -rw-r--r-- 1 username users 1047163622 2012-07-05 06:18 xac