python - file is uploaded in jupyter notebook but not accessible -

i not sure why can see first 5 lines in uploaded file in jupyter notebook though file uploads:

import io ipython.display import display import fileupload  def _upload():      _upload_widget = fileupload.fileuploadwidget()      def _cb(change):         decoded = io.stringio(change['owner'].data.decode('utf-8'))         filename = change['owner'].filename         print('uploaded `{}` ({:.2f} kb)'.format(             filename, len(decoded.read()) / 2 **10))      _upload_widget.observe(_cb, names='data')     display(_upload_widget)  uploaded_file = _upload() uploaded `plot.r` (3.00 kb) %%bash pwd head -5 uploaded_file head -5 "/home/jalal/plot.r" head -5 plot.r %%bash  pwd  head -5 uploaded_file  head -5 "/home/jalal/plot.r"  head -5 plot.r  /home/jalal  head: cannot open ‘uploaded_file’ reading: no such file or directory head: cannot open ‘/home/jalal/plot.r’ reading: no such file or directory head: cannot open ‘plot.r’ reading: no such file or directory 

also tried this:

_upload 

and then

head -5 filename 

i error:

head: cannot open ‘filename’ reading: no such file or directory