What is the first flag/option in the man pages of
ssh -1246AaCfgKkMNnqsTtVvXxYy tcpdump -AdDefIKlLnNOpqRStuUvxX
How is it called, why is it there, what conventions are there about it, what else uses it, why do most commands don't have it...
I couldn't find anything about it, so whatever you can tell me would be appreciated.
I do know however that it prints the version I am using and in the case of tcpdump, usage options as well.
I thought that it lists all possible flags, but it doesn't,
-c -C are flags for
tcpdump and not in that string for example, so is