===== BASH (/bin/bash) =====

==== find ===

== recursively remove all .svn dirs ==
<code bash>rm -rf `find . -type d -name .svn`</code>


== find files newer/oder than ==
<code bash>find ./ -type f -type d -newermt 2007-06-07</code>

== replace a string in all files in a subdirectory ==
<code bash>find . -name '*.shtml' -type f -print0 | xargs -0 sed 's/mitarbeiter-und-studenten/staff/g' -i </code>
Replaces mitarbeiter-und-studenten with staff. __BE careful with that!!!!__ 

== Use a command on all //directories/files// recursive ==

<code bash>
find <dir> -type d -exec chmod g+s {} \;
</code>

== Copy directory content ==
Copy the content of one directory into an other already existing directory
<code bash>
cp /dir/. /dir2/ -R
</code> 

=== other stuff ===

== View and edit metadata of pdf-documents: ==
<code bash>pdftk original.pdf dump_data output metadata.txt</code>
edit metadata.txt  ...  and back into the pdf:
<code bash>pdftk original.pdf update_info metadata.txt output new.pdf</code>