Addedd some comments

unic_connect.sh

@@ -28,15 +28,15 @@ ssh-add
 if [ -z "$user" ] ; then
   echo "Username not defined in script, asking for username!"
   read -p "Enter your username like PertrovPP:" user
+#Cheking username for ssh connection and if good then add it to script variables
   statusssh=$(ssh -o BatchMode=yes -o ConnectTimeout=5 -p 10022 $user@tunnel01.rbtechnologies.ru echo ok 2>&1) 
     if [[ $statusssh == ok ]] ; then
-      echo "Adding username $user for future use in script"
+      echo "Adding username $user for future use in the script"
       sed -i -e '0,/user=""/s/user=""/user='$user'/' $0
     else
       echo "Username defined! Trying to connect..."
     fi 
 fi
-#Cheking username for ssh connection and if good then add it to script variables