BASH pre login / post login banners and scripts

Display message to local client - before login /etc/issue

|/etc/issue

*********************************
*         Ccompany ltd.         *
*********************************
* - Authorized access only!     *
* - Activity is recorded        *
*********************************

Display message to ssh client - before login /etc/issue.net

|/etc/ssh/sshd_config - enable banner on SSH

Banner /etc/issue.net

|/etc/issue.net - displayed before SSH login

*********************************
*         Ccompany ltd.         *
*********************************
* - Authorized access only!     *
* - Activity is recorded        *
*********************************

Execute script after successful login (displaying messages via ECHO)

|/etc/profiles.d/banner.sh - executed after successful login

#!/bin/bash
alias ll='ls -ahls --color=auto'
BLACK="\033[0;30m"
RED="\033[0;31m"
GREEN="\033[0;32m"
ORANGE="\033[0;33m"
BLUE="\033[0;34m"
PURPLE="\033[0;35m"
CYAN="\033[0;36m"
LIGHTGRAY="\033[0;37m"
DARKGRAY="\033[1;30m"
LIGHTRED="\033[1;31m"
LIGHTGREEN="\033[1;32m"
YELLOW="\033[1;33m"
LIGHTBLUE="\033[1;34m"
LIGHTPUTPLE="\033[1;35m"
LIGHTCYAN="\033[1;36m"
WHITE="\033[1;37m"
NC="\033[0m"
 
BOLD="\033[1mBold"
DIM="\033[2mDim"
UN