Who has ssh access?

Question

linux

How to view users who have SSH access with one command?

Answer 1

Users listed in /etc/passwdwith the correct shell have access.
Something like this:

cat /etc/passwd | grep -E '/bin/(bash|sh)$' | grep -Eo '^\w+'

This is an example for popular shells (bash and sh), all of which are listed in /etc/shells.
UPD: this version checks all active shells in the system (thanks to Boris Syomov for the comments)

while read SHELL; do cat /etc/passwd | grep -E "$SHELL$" | grep -Eo '^\w+'; done < /etc/shells

Answer 2

look in /etc/passwd who has a shell as their shell. for example
grep "sh" /etc/passwd