User:Inge Hoonte/Dummies, the sequel

oct 21 intro

-> 4 dummies attending. Evo starts with showing Dutch Design Week project. Making a physical poster. Take pictures from above. Installation with camera above + lights, and flatbed underneath it. Arduino and button to control camera. PVC pipes run from platform to flatbed with all cables (unstable).

• Without button: connect wires to test Arduino
• leave test script on computer there to see if button is working
• Arduino: take picture
• python script: kill P2P camera program so iPhoto doesn't open. Instead open gPhoto. save it, write it, etc

grep "bla" *
ps ax | grep "PTPCamera" 
// returns camera number 752
kill -9 752
ps ax | grep "PTPCamera" | grep -v "grep"
gphoto2 -a

• work with PIL and ImageMagick
• copy to temporary directory: folder of web page. For open day this was written in AppleScript, now in gPhoto: free software to communicate with digital cameras.
• rotate picture 90 degrees
• Copy to local image gallery
• refresh browser -> chrome script (command shift f)
• also set up default start-up, and kiosk for browser, full-screen browser etc etc

Evo's favorite commands

ls
cp = copy (scp = secure copy)
mv = move
mkdir = make dir
cd = change directory
rm
grep
find
man
watch
sed
cat
echo
less

|
>
>>
* = everything that ends in... 

ctrl + c
cd ~  = evo go home

example:
ls -al ~ = show all 
mv *.jpg ~/pics/
rm -rf pics
grep “bla” *
find -name “*bla*”
mkdir test
echo bla > bla.txt
echo blabla >> bla.txt
cat /var/log/auth.log |less

'cp copy all python files: cp Documents/.../*.py copyall python files that start with start and save as different file name: cp Docu.../start*.py ~/.../* recursive: all folders and sub trees in it: cp -R