Why is logging a useful practice:

• Good idea to log network sessions output into a text file, from troubleshooting and technical point of view
• In case of troubleshooting a reliable source to review the sequence of commands and its outcome
• Task documentation at its source

A Z-shell zsh function to get logging session instantly by calling function with a mandatory parameter logfile :

function logfile(){
        # Give the session name parameter
        readonly sessionname=${1:?" Syntax: logfile sessionname"}
        # Set the datum variable, change the dir, print status.
        local datum=$(date '+%Y%m%d-%H%M%S')
        cd ~/netlog/
        echo "logging to $datum-$1.log file. Type exit to end the netlog session!"
        # Record the session
        script -c '/bin/sh --login' $datum-$1.log
}

Ending the logging session is notified. End by using the exit command:

Log files will look like in example below. This is also useful if greping for some a valuable piece of information:

The same result can be accomplished differently, f.e. by using the tee command or logging by using screen with a logging parameter. Find your own solution.