Get SSH login name in bash script
You could use the id command:
$ ssh 192.168.0.227 logname logname: no login nameHowever
$ ssh 192.168.0.227 id uid=502(username) gid=100(users) groups=100(users)In a bash script you can cut the username out of the id output with something like
$ id | cut -d "(" -f 2 | cut -d ")" -f1 usernameTo have a script that works both in a sudo environment and without a terminal you could always execute different commands conditionally.
if logname &> /dev/null ; then NAME=$( logname )else NAME=$( id | cut -d "(" -f 2 | cut -d ")" -f1 )fiecho $NAME