SQL</br>

<a href="http://www.sqlcourse.com/index.html">http://www.sqlcourse.com/index.html</a> </br>

select a,b,c,d</br>
from</br>
blh_table1 t1</br>
join</br>
bah_table2 t2</br>
on</br>
t1.a=t2.a</br>
where</br>
t1.b='sucks'</br></br>

BASH</br>
<a href="http://ss64.com">http://ss64.com</a> </br>
<a href="http://www.uw-team.org/artykul_bash.html">http://www.uw-team.org/artykul_bash.html</a> </br>
<a href="http://debian.linux.pl/threads/1603-Wa%C5%BCne-polecenia-bash<">http://debian.linux.pl/threads/1603-Wa%C5%BCne-polecenia-bash<</a> </br>
<a href="http://www.uw-team.org/artykuly_linux.html">http://www.uw-team.org/artykuly_linux.html</a> </br>


</br>
TRIXY</br>
=FILTER($A$1:$A; $B$1='cos'!$D$2:$D)</br>
sum(), counta(), countif(), ewentualnie SELECT (jak w daily)</br>

</br>
PYTHON:</br>
<a href="http://www.learnpython.org/">http://www.learnpython.org/</a> </br>
<a href="http://www.codecademy.com/tracks/python">http://www.codecademy.com/tracks/python</a> </br>