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Shell Bash Scripting: Assignment & Excercise – 8


Write a Shell Bash Script for show hardware information for systems Linux


#!/usr/bin/env bash
# ------------------------------------------------------------------------ #
# Script Name: hardware_machine.sh
# Description: Show informations about machine hardware.
# Written by: Amaury Souza
# Maintenance: Amaury Souza
# ------------------------------------------------------------------------ #
# Usage:
# $ ./hardware_machine.sh
# ------------------------------------------------------------------------ #
# Bash Version:
# Bash 4.4.19
# ------------------------------------------------------------------------ #
function menuprincipal () {
clear
TIME=1
echo " "
echo $0
echo " "
echo "Choose an option below!
1 - Verify desktop processor
2 - Verify system kernel
3 - Verify installed softwares
4 - Operation system version
5 - Verify desktop memory
6 - Verify serial number
7 - Verify system IP
0 - Exit"
echo " "
echo -n "Chosen option: "
read opcao
case $opcao in
1)
function processador () {
CPU_INFO=`cat /proc/cpuinfo | grep -i "^model name" | cut -d ":" -f2 | sed -n '1p'`
echo "CPU model: $CPU_INFO"
sleep $TIME
}
processador
read -n 1 -p "<Enter> for main menu"
menuprincipal
;;
2)
function kernel () {
#RED HAT: cat /etc/redhat-release
KERNEL_VERSION_UBUNTU=`uname -r`
KERNEL_VERSION_CENTOS=`uname -r`
if [ -f /etc/lsb-release ]
then
echo "kernel version: $KERNEL_VERSION_UBUNTU"
else
echo "kernel version: $KERNEL_VERSION_CENTOS"
fi
}
kernel
read -n 1 -p "<Enter> for main menu"
menuprincipal
;;
3)
function softwares () {
#while true; do
TIME=3
echo " "
echo "Choose an option below for program's list!
1 - List Ubuntu programs
2 - List Fedora programs
3 - Install programs
4 - Back to menu"
echo " "
echo -n "Chosen option: "
read alternative
case $alternative in
1)
echo "Listing all programs Ubuntu's systems..."
sleep $TIME
dpkg -l > /tmp/programs.txt
echo Programs listed and available at /tmp
sleep $TIME
echo " "
echo "Back to menu!" | tr [a-z] [A-Z]
sleep $TIME
;;
2)
echo "Listing all programs Fedora's systems..."
sleep $TIME
yum list installed > /tmp/programs.txt
echo Programs listed and available at /tmp
sleep $TIME
;;
3)
echo Installing programss...
LIST_OF_APPS="pinta brasero gimp vlc inkscape blender filezilla"
#use aptitude command for programs loop.
apt install aptitude -y
aptitude install -y $LIST_OF_APPS
;;
4)
echo Back to main menu...
sleep $TIME
;;
esac
#done
}
softwares
menuprincipal
;;
4)
function sistema () {
VERSION=`cat /etc/os-release | grep -i ^PRETTY`
if [ -f /etc/os-release ]
then
echo "The system version: $VERSION"
else
echo "System not supported"
fi
}
sistema
read -n 1 -p "<Enter> for main menu"
menuprincipal
;;
5)
function memory () {
MEMORY_FREE=`free -m | grep ^Mem | tr -s ' ' | cut -d ' ' -f 4`
#MEMORY_TOTAL=
#MEMORY_USED=
echo Verifying system memory...
echo "Memory free is: $MEMORY_FREE"
}
memory
read -n 1 -p "<Enter> for main menu"
menuprincipal
;;
6)
function serial () {
SERIAL_NUMBER=`dmidecode -t 1 | grep -i serial`
echo $SERIAL_NUMBER
}
serial
read -n 1 -p "<Enter> for main menu"
menuprincipal
;;
7)
function ip () {
IP_SISTEMA=`hostname -I`
echo IP is: $IP_SISTEMA
}
ip
read -n 1 -p "<Enter> for main menu"
menuprincipal
;;
0)
echo Exiting the system...
sleep $TIME
exit 0
;;
*)
echo Invalid option, try again!
;;
esac
}
menuprincipal
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