I downloaded and saved 2 files on Linux tails live os. I have set the appropriate permissions on those 2 files to allow them as executable. This is the command I used. sudo chmod 777 home/amnesia/Desktop/filesudo chmod 777 fileHowever, when I try to access these 2 files, both the files yield me an error as cannot access.I am not sure why it isn't recognizing the file permissions correctly. 
chmod: cannot access 'file' : No such file or directory error when the file exists
permissions;chmod
this to:sudo chmod 777 home/amnesia/Desktop/filethis:sudo chmod 777 /home/amnesia/Desktop/fileyou left a '/' slash better to use will be:sudo chmod 777 ~/Desktop/file