Error: ANDROID_HOME is not set and "android" command not in your PATH. You must fulfill at least one of these conditions

Making sure ANDROID_HOME is exported and adding the SDK tool directories to PATH should be more than enough to get you going.

Using the terminal

# First, we make sure we have a newline at the end of the .bash_profile
echo >> /Users/abdi/.bash_profile

# We set the ANDROID_HOME value in the .bash_profile
echo "export ANDROID_HOME=/Users/abdi/adt/sdk" >> /Users/abdi/.bash_profile

# We alter the PATH value a bit as well
echo "export PATH=${PATH}:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools" >> /Users/abdi/.bash_profile

# We then tell the terminal to update all the things
. /Users/abdi/.bash_profile

Using a GUI (mostly)

You can also open the .bash_profile file in TextEdit using the open -e /Users/abdi/.bash_profile command. If you get some errors about missing files, try running touch /Users/abdi/.bash_profile and retry the open command. In the file that opens, add the following lines at the end.

export ANDROID_HOME=/Users/abdi/adt/sdk
export PATH=${PATH}:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools

Running . /Users/abdi/.bash_profile as in the terminal version after that should get you fully set up.