diff --git a/Assignment_1.sh b/Assignment_1.sh
new file mode 100644
index 0000000..abbcd38
--- /dev/null
+++ b/Assignment_1.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+echo -n "Enter your directory: "
+read -r x
+du -sh "$x"
diff --git a/Assignment_10.sh b/Assignment_10.sh
new file mode 100644
index 0000000..b4dbf6f
--- /dev/null
+++ b/Assignment_10.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+echo -n "Enter The Number: "
+read -r n
+if [ $((n % 2)) -eq 0 ]; then
+	echo "is a Even Number"
+else
+	echo "is a Odd Number"
+fi
\ No newline at end of file
diff --git a/Assignment_11.sh b/Assignment_11.sh
new file mode 100644
index 0000000..ead1e4c
--- /dev/null
+++ b/Assignment_11.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+echo -n "Enter A Number: "
+read -r n
+arm=0
+temp=$n
+while [ "$n" -ne 0 ]; do
+	r=$((n % 10))
+	arm=$((arm + r * r * r))
+	n=$((n / 10))
+done
+echo $arm
+if [ $arm -eq "$temp" ]; then
+	echo "Armstrong"
+else
+	echo "Not Armstrong"
+fi
\ No newline at end of file
diff --git a/Assignment_12.sh b/Assignment_12.sh
new file mode 100644
index 0000000..aa5c9e1
--- /dev/null
+++ b/Assignment_12.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+echo -n "Enter Any Number: "
+read -r n
+i=1; c=1
+while [ $i -le "$n" ]; do
+	i=$((i + 1))
+	r=$((n % i))
+	[ $r -eq 0 ] && c=$((c + 1))
+done
+
+if [ $c -eq 2 ]; then
+	echo "Prime"
+else
+	echo "Not Prime"
+fi
diff --git a/Assignment_13.sh b/Assignment_13.sh
new file mode 100644
index 0000000..3aa2a40
--- /dev/null
+++ b/Assignment_13.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+x=0; y=1; i=2
+while true; do
+	i=$((i + 1))
+	z=$((x + y))
+	echo -n "$z "
+	x=$y
+	y=$z
+	sleep .5
+done
\ No newline at end of file
diff --git a/Assignment_14.sh b/Assignment_14.sh
new file mode 100644
index 0000000..c7f549d
--- /dev/null
+++ b/Assignment_14.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+for ((i = 32; i >= 0; i--)); do
+	r=$((2 ** i))
+	Probablity+=($r)
+done
+
+[[ $# -eq 0 ]] && {
+	echo -e "Usage \n \t $0 numbers"
+	exit 1
+}
+
+echo -en "Decimal\t\tBinary\n"
+for input_int; do
+	s=0
+	test ${#input_int} -gt 11 && {
+		echo "Support Upto 10 Digit number :: skiping \"$input_int\""
+		continue
+	}
+
+	printf "%-10s\t" "$input_int"
+
+	for n in ${Probablity[@]}; do
+
+		if [[ $input_int -lt $n ]]; then
+			[[ $s == 1 ]] && printf "%d" 0
+		else
+			echo -n 1
+			s=1
+			input_int=$((input_int - n))
+		fi
+	done
+	echo -e
+done
\ No newline at end of file
diff --git a/Assignment_15.sh b/Assignment_15.sh
new file mode 100644
index 0000000..16715ce
--- /dev/null
+++ b/Assignment_15.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+#
+# Author: Abhishek Shingane (abhisheks@iitbhilai.ac.in)
+# Date: 11 Sep 2020
+#
+
+if ! [ -x "$(command -v jq)" ]; then
+  echo 'Error: jq is not installed. Install via https://stedolan.github.io/jq/download/'
+  exit 1
+fi
+
+if [[ $# -ne 1 ]]; then
+	echo 'Provide I.P as command line parameter. Usage:  ' $0 ' 15.45.0.1 '
+	exit 1
+fi
+link=$(echo "http://ip-api.com/json/"$1)
+data=$(curl $link -s) # -s for slient output
+
+status=$(echo $data | jq '.status' -r)
+
+if [[ $status == "success" ]]; then
+	
+	city=$(echo $data | jq '.city' -r)
+	regionName=$(echo $data | jq '.regionName' -r)
+	country=$( echo $data | jq '.country' -r)
+	echo $city, $regionName in $country. 
+fi 
\ No newline at end of file
diff --git a/Assignment_16.sh b/Assignment_16.sh
new file mode 100644
index 0000000..f67279c
--- /dev/null
+++ b/Assignment_16.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+name=$1
+path=$2
+tar -czvf "$name.tar.gz" "$path"
+gpg -c "$name.tar.gz"
+rm -rf "$name.tar.gz"
\ No newline at end of file
diff --git a/Assignment_17.sh b/Assignment_17.sh
new file mode 100644
index 0000000..58a4c18
--- /dev/null
+++ b/Assignment_17.sh
@@ -0,0 +1,23 @@
+
+#!/bin/bash
+#
+# Linux Shell Scripting Tutorial 1.05r3, Summer-2002
+#
+# Written by Vivek G. Gite <vivek@nixcraft.com>
+#
+# Latest version can be found at www.nixcraft.com/
+#
+# Q1.Script to sum to nos
+#
+
+if [ $# -ne 2 ]
+then
+echo “Usage – $0 x y”
+echo ” Where x and y are two nos for which I will print sum”
+exit 1
+fi
+echo “Sum of $1 and $2 is `expr $1 + $2`”
+#
+# ./ch.sh: vivek-tech.com to nixcraft.com referance converted using this tool
+# See the tool at www.nixcraft.com/uniqlinuxfeatures/tools/
+#
\ No newline at end of file
diff --git a/Assignment_18.sh b/Assignment_18.sh
new file mode 100644
index 0000000..1f36cea
--- /dev/null
+++ b/Assignment_18.sh
@@ -0,0 +1,12 @@
+# scmuser created the topic: how to restore the dump file using shell scripting
+
+# I have created a script file to dump the application files using the following script
+
+# Code
+#  =============
+#!/bin/bash
+
+
+now=$(date +”%d-%m-%Y”)
+#use 1 instead of 0 which is incremental backup
+dump -0f $now /var/www/html/*
\ No newline at end of file
diff --git a/Assignment_2.sh b/Assignment_2.sh
new file mode 100644
index 0000000..83b84b8
--- /dev/null
+++ b/Assignment_2.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+# test-file: Evaluate the status of a file
+echo "Hey what's the File/Directory name (using the absolute path)?"
+read FILE
+
+if [ -e "$FILE" ]; then
+	if [ -f "$FILE" ]; then
+		echo "$FILE is a regular file."
+	fi
+	if [ -d "$FILE" ]; then
+		echo "$FILE is a directory."
+	fi
+	if [ -r "$FILE" ]; then
+		echo "$FILE is readable."
+	fi
+	if [ -w "$FILE" ]; then
+		echo "$FILE is writable."
+	fi
+	if [ -x "$FILE" ]; then
+		echo "$FILE is executable/searchable."
+	fi
+else
+	echo "$FILE does not exist"
+	exit 1
+fi
+exit
+
+
+
+#!/bin/bash
+
+# Program to check the status of a file
+
+echo -n "Enter the file directory"
+read -r File
+
+if [ -e "$FILE" ]; then
+	if [-f $FILE]; then
+	echo "$FILE is a regular file"
+	if
+	if [ -r $FILE ]; then
+	echo "$FILE is a readable file"
+	if
+	if [ -d $FILE ]; then
+	echo "$FILE is a directory"
+	if
+else
+	echo "$FILE is not available "
+	exit 1
+fi
+exit 
+
+
diff --git a/Assignment_3.sh b/Assignment_3.sh
new file mode 100644
index 0000000..804c615
--- /dev/null
+++ b/Assignment_3.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+date
+echo "uptime:"
+uptime
+echo "Currently connected:"
+w
+echo "--------------------"
+echo "Last logins:"
+last -a | head -3
+echo "--------------------"
+echo "Disk and memory usage:"
+df -h | xargs | awk '{print "Free/total disk: " $11 " / " $9}'
+free -m | xargs | awk '{print "Free/total memory: " $17 " / " $8 " MB"}'
+echo "--------------------"
+start_log=$(head -1 /var/log/messages | cut -c 1-12)
+oom=$(grep -ci kill /var/log/messages)
+echo -n "OOM errors since $start_log :" $oom
+echo ""
+echo "--------------------"
+echo "Utilization and most expensive processes:"
+top -b | head -3
+echo
+top -b | head -10 | tail -4
+echo "--------------------"
+echo "Open TCP ports:"
+nmap -p -T4 127.0.0.1
+echo "--------------------"
+echo "Current connections:"
+ss -s
+echo "--------------------"
+echo "processes:"
+ps auxf --width=200
+echo "--------------------"
+echo "vmstat:"
+vmstat 1 5
\ No newline at end of file
diff --git a/Assignment_4.sh b/Assignment_4.sh
new file mode 100644
index 0000000..91e2077
--- /dev/null
+++ b/Assignment_4.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+MAX=95
+EMAIL=server@127.0.0.1
+
+# Calculate CPU usage and round to the nearest integer
+USE=$(grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {printf "%.0f", usage}')
+
+# Debug statement to print the calculated CPU usage
+echo "Calculated CPU Usage: $USE"
+
+# Compare the integer value with the maximum threshold
+if [ "$USE" -gt "$MAX" ]; then
+    echo "Percent used: $USE" | mail -s "Running out of CPU power" "$EMAIL"
+    echo "Email sent."
+else
+    echo "CPU usage below threshold."
+fi
diff --git a/Assignment_5.sh b/Assignment_5.sh
new file mode 100644
index 0000000..8d033da
--- /dev/null
+++ b/Assignment_5.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+MAX=95
+EMAIL=server@127.0.0.1
+PART=sda1
+
+# Extract the usage percentage, making sure to handle the case where the partition is not found
+DF_OUTPUT=$(df -h)
+USE=$(echo "$DF_OUTPUT" | awk -v part="$PART" '$NF==part {print $(NF-1)}' | sed 's/%//')
+
+# Debug statement to print the actual output of the df command
+echo "df output:"
+echo "$DF_OUTPUT"
+
+# Check if USE is a valid number
+if [[ "$USE" =~ ^[0-9]+$ ]]; then
+    # Compare the integer value with the maximum threshold
+    if [ "$USE" -gt "$MAX" ]; then
+        echo "Percent used: $USE" | mail -s "Running out of disk space" "$EMAIL"
+    fi
+    
+fi
\ No newline at end of file
diff --git a/Assignment_6.sh b/Assignment_6.sh
new file mode 100644
index 0000000..ccc31e7
--- /dev/null
+++ b/Assignment_6.sh
@@ -0,0 +1,115 @@
+#!/bin/bash
+
+IP4FW=/sbin/iptables
+IP6FW=/sbin/ip6tables
+LSPCI=/usr/bin/lspci
+ROUTE=/sbin/route
+NETSTAT=/bin/netstat
+LSB=/usr/bin/lsb_release
+
+## files ##
+DNSCLIENT="/etc/resolv.conf"
+DRVCONF="/etc/modprobe.conf"
+NETALIASCFC="/etc/sysconfig/network-scripts/ifcfg-eth?-range?"
+NETCFC="/etc/sysconfig/network-scripts/ifcfg-eth?"
+NETSTATICROUTECFC="/etc/sysconfig/network-scripts/route-eth?"
+SYSCTL="/etc/sysctl.conf"
+
+## Output file ##
+OUTPUT="network.$(date +'%d-%m-%y').info.txt"
+
+## Email info to?? ##
+SUPPORT_ID="your_name@service_provider.com"
+
+chk_root() {
+	local meid=$(id -u)
+	if [ $meid -ne 0 ]; then
+		echo "You must be root user to run this tool"
+		exit 999
+	fi
+}
+
+write_header() {
+	echo "---------------------------------------------------" >>$OUTPUT
+	echo "$@" >>$OUTPUT
+	echo "---------------------------------------------------" >>$OUTPUT
+}
+
+dump_info() {
+	echo "* Hostname: $(hostname)" >$OUTPUT
+	echo "* Run date and time: $(date)" >>$OUTPUT
+
+	write_header "Linux Distro"
+	echo "Linux kernel: $(uname -mrs)" >>$OUTPUT
+	$LSB -a >>$OUTPUT
+
+	[ -x ${HWINF} ] && write_header "${HWINF}"
+	[ -x ${HWINF} ] && ${HWINF} >>$OUTPUT
+
+	[ -x ${HWINF} ] && write_header "${HWINF}"
+	[ -x ${HWINF} ] && ${HWINF} >>$OUTPUT
+
+	write_header "PCI Devices"
+	${LSPCI} -v >>$OUTPUT
+
+	write_header "$IFCFG Output"
+	$IFCFG >>$OUTPUT
+
+	write_header "Kernel Routing Table"
+	$ROUTE -n >>$OUTPUT
+
+	write_header "Network Card Drivers Configuration $DRVCONF"
+	[ -f $DRVCONF ] && grep eth $DRVCONF >>$OUTPUT || echo "Error $DRVCONF file not found." >>$OUTPUT
+
+	write_header "DNS Client $DNSCLIENT Configuration"
+	[ -f $DNSCLIENT ] && cat $DNSCLIENT >>$OUTPUT || echo "Error $DNSCLIENT file not found." >>$OUTPUT
+
+	write_header "Network Configuration File"
+	for f in $NETCFC; do
+		if [ -f $f ]; then
+			echo "** $f **" >>$OUTPUT
+			cat $f >>$OUTPUT
+		else
+			echo "Error $f not found." >>$OUTPUT
+		fi
+	done
+
+	write_header "Network Aliase File"
+	for f in $NETALIASCFC; do
+		if [ -f $f ]; then
+			echo "** $f **" >>$OUTPUT
+			cat $f >>$OUTPUT
+		else
+			echo "Error $f not found." >>$OUTPUT
+		fi
+	done
+
+	write_header "Network Static Routing Configuration"
+	for f in $NETSTATICROUTECFC; do
+		if [ -f $f ]; then
+			echo "** $f **" >>$OUTPUT
+			cat $f >>$OUTPUT
+		else
+			echo "Error $f not found." >>$OUTPUT
+		fi
+	done
+
+	write_header "IP4 Firewall Configuration"
+	$IP4FW -L -n >>$OUTPUT
+
+	write_header "IP6 Firewall Configuration"
+	$IP6FW -L -n >>$OUTPUT
+
+	write_header "Network Stats"
+	$NETSTAT -s >>$OUTPUT
+
+	write_header "Network Tweaks via $SYSCTL"
+	[ -f $SYSCTL ] && cat $SYSCTL >>$OUTPUT || echo "Error $SYSCTL not found." >>$OUTPUT
+
+	echo "The Network Configuration Info Written To $OUTPUT. Please email this file to $SUPPORT_ID."
+}
+
+chk_root
+dump_info
+
+
diff --git a/Assignment_7.sh b/Assignment_7.sh
new file mode 100644
index 0000000..7aea2eb
--- /dev/null
+++ b/Assignment_7.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+rsync -avz -e "ssh " /path/to/yourfile user@backupserver.com:/backup/
+echo "backup for $(date) " | mail -s "backup complete" user@youremail.com
\ No newline at end of file
diff --git a/Assignment_8.sh b/Assignment_8.sh
new file mode 100644
index 0000000..56c7835
--- /dev/null
+++ b/Assignment_8.sh
@@ -0,0 +1,172 @@
+#!/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 $TIME
+	       exit 0
+	       ;;
+
+	*)
+		echo Invalid option, try again!
+		;;
+esac
+}
+menuprincipal
\ No newline at end of file
diff --git a/Assignment_9.sh b/Assignment_9.sh
new file mode 100644
index 0000000..31e5439
--- /dev/null
+++ b/Assignment_9.sh
@@ -0,0 +1,10 @@
+
+#!/usr/bin/env bash
+
+TEMP_FILE=/sys/class/thermal/thermal_zone0/temp
+
+ORIGINAL_TEMP=$(cat $TEMP_FILE)
+TEMP_C=$((ORIGINAL_TEMP/1000))
+TEMP_F=$(($TEMP_C * 9/5 + 32))
+
+echo $TEMP_F F
\ No newline at end of file