#acl ChrisSeidel:read,write,delete,revert All:read

= UNIX commands and Notes =

Summarize the size of a group of gz files:
{{{
ls -l *.gz | awk '{sum += $5} END {print sum}'
}}}

= rsync =

Remote and local file syncronization.
Given two directories dir1 and dir2, you can synchronize the contents of dir2 to dir1 as follows: 
{{{
rsync -a dir1/ dir2
}}}
The trailing slash on dir1 ensures that the '''contents''' of dir1 are transferred but not dir1 itself. Two other useful flags:
{{{
rsync -avn dir1/ dir2
}}}
v = verbose, n = dry-run

== rsync to a remote machine ==
{{{
rsync -a local_dir username@remote_host:destination_directory
}}}
-P option will give you a progress bar, and in case of an interrupted transfer will also allow you to resume later.

== other options ==


|| '''option''' || '''Description''' ||
|| --delete || deletes files from destination that are not present locally (true sync) ||
|| --include=pattern  || specify a pattern to include ||
|| --exclude=pattern  || specify a pattern to exclude ||