How to display the output of “WHO” command and along with count?

How to display the output of “WHO” command and along with count?

You should consult unix or linux guides on how to create and run shell scripts as it is too lengthy to discuss here.

Write the following in a shell script:

—- start —-

who
echo -n " Number of  users:"
who | awk '{ print $1 }' | sort | uniq | wc -l

—- end —-

The first line prints out the standard "who" command output.  The second line displays the text "Number of users: ".  The "-n" option to echo prevents it from inserting a newline character.  Finally, the third line counts the number of unique users from the output of a "who" command.

Hope this helps.