Can someone please answer below question.
Note: (Since i am unable to copy paste from my linux virtual box to windows, i have to use screenshots at some places, please excuse me for that)
Quote from my textbook
$ cat -n /etc/ profile | pr -d | lpr
The result should be a printout that might be handy for taking notes on the configuration file. One caveat, though: If the file contains lines that approach or exceed 80 characters in length, the result can be single lines that spill across two lines. The result will be disrupted page boundaries. As a workaround, you can set a somewhat short page length with -l and use -f to ensure that the printer receives form feeds after each page:
$ cat -n /etc/ profile | pr -dfl 50
So does above scenario mean exceeding 80 characters in single line ? If yes then i have already tried a scenario; where i have a line with 100 characters and i could not notice any difference with or without dfl argument in pr command. Below are the screenshots.
The only difference between the 2 commands is double space due to -d argument. I hope i am clear in my above question. Please wish someone to explain textbook quote where it mentions how to handle caveat scenario ?