mkdir tmp_k
cd tmp_k
cp -a ~/github/ipykernel/* .
for i in *py */*py */*/*py; do
 sed -i '.bk' -e 's/ipkernel/yapkernel/g' $i
  sed -i '.bk' -e 's/ipykernel/yap_kernel/g' $i
   sed -i '.bk'  -e 's/IPKernelApp/YAP_KernelApp/g' $i
   sed -i '.bk'  -e 's/IPythonKernel/YAPKernel/g' $i
   sed -i '.bk'  -e 's/IPKernel/YAPKernel/g' $i
 done
 mv ipykernel yap_kernel
 mv ipykernel_launcher.py yap_kernel_launcher.py
 mv yap_kernel/ipkernel.py yap_kernel/yapkernel.py