gimp plugins tutorial

exec_python-fu_plug-ins

tut1
http://stackoverflow.com/questions/12662676/writing-a-gimp-python-script

step1: put the script in first comment in the plugins folder set in pref->folders->plugins
step2: filters->python-fu->console->browse
step3: browse python-flip
step4: click apply
step5: change the "file" keyword to a test image with its path ie: pdb.pyhon-flip("/tmp/test.png")
step6: click enter

step1: ensure having the execution permissions on the file (ie: 755)

tut2:
step1: put the script gimpbook.com/scripting/gimp-script-templates/helloworld.py in the plugins folder
step2: as before
step5: browse for python_fu_hello_world
step4: as before
step5: type the parameters {ie: pdb.python_fu_hello_world("Hello world", "Sans", 20, "red")}

thanks @RaniaRho for the help :D

For tut1 you can use the cmd command mentioned in the link passing the img as an input parameter to the function
gimp -i -b '(python-flip RUN-NONINTERACTIVE "/tmp/test.jpg")' -b '(gimp-quit 0)'