bashDemo.sh

#!/bin/bash
# fun script I made in an hour to play with demoing various commands.  
# Should be filed under stupid-bash-tricks


clear
echoEval () {
echo -e " =========================================" 
cmd=$*
echo -e  "Evaluation the command :\n \t\t $cmd \n =============================="
eval $cmd
echo -e " =========================================" 
readContinue
}

echoPause () {
echo -e " =========================================" 
cmd=$*
echo -e  "\n \t $cmd \n "
echo -e " =========================================" 
readContinue
}

readContinue () {
 echo -e "\n\n"
read -n 1 -r -s -p $'Press enter to continue...\n'
clear
}

echoPause "ifconfig is aifconfig is a command line interface tool for network interface configuration and also used to initialize an interfaces at system boot time. Once a server is up and running, it can be used to assign an IP Address to an interface and enable or disable the interface on " 
echoEval "ifconfig"
echoPause "to list all interfaces up or down use the -a flag"
echoEval "ifconfig -a"
echoEval "ls -la"
echoPause " To assign an IP address to an interface, use the following command."
echoPause "$ sudo ifconfig eth0 192.168.56.5 netmask 255.255.255.0 "
echoPause "To activate an network interface, type."
echoPause "$ sudo ifconfig up eth0"
echoPause "To deactivate or shut down an network interface, type."
echoPause "$ sudo ifconfig down eth0"
echoPause "Note: Although ifconfig is a great tool, it is now obsolete (deprecated), its replacement is ip command which is explained below."
echo "the end."