I wrote some alternative answers which you may find useful for this mission on symbolic notations.
DQ Sample Answer:
cd #changing mistery_file permissions chmod a+rwx mistery_file #changing Trash permissions chmod g+wx,o+w Trash #changing Config permissions chmod g+x config_file_1 chmod g+x,o=r config_file_2 #changing disposable file permissions chmod a=rwx,o-x d*
cd ~ chmod 777 mistery_file chmod 776 Trash chmod 554 c* chmod 776 d*
Here is a screenshot of the code and the results:
Check out this article for the descriptions of using numbers, which i find easier than the letters. We can use the
* wildcard to select all files beginning with a certain character or sequence (in this case all the
disposable_files to save time in changing all permissions of files with similar names, instead of manually doing them one by one.
Cheers and Happy Learning!