cd(folder='document')
mkdir(dir_name='temp')
mv(source='final_report.pdf', destination='temp')
cd(folder='temp')
grep(file_name='final_report.pdf',pattern='budget analysis')
sort('final_report.pdf')
cd(folder='..')
mv(source='previous_report.pdf',destination='temp')
cd(folder='temp')
diff(file_name1='final_report.pdf',file_name2='previous_report.pdf')