On Tue, Jun 22, 2021 at 05:08:35PM +0200, Christian wrote: > Hi Andrei, > > thanks a lot for your reply. 😁 > > > It's unclear what exactly '/comm -23' is supposed to be > > Well, from the man pages (man comm) : > > /comm [OPTION]... FILE1 FILE2//
Your mail user agent (or your editor) appears to be adding forward slash characters to lines, perhaps to represent "this is terminal input/output", or "use a fixed-width font", or something similar. These slash characters are causing some confusion. > // > //DESCRIPTION// > // Compare sorted files FILE1 and FILE2 line by line. They're a bit messy. It takes some guesswork to extract the valid shell command from inside the slashed-up text, especially when the number of slashes added per line is variable.