practice2_bash

#!/bin/bash
clear

# NUM1=7
# NUM2=98

# NUM3=$(expr "$NUM1" + "$NUM2")
# NUM3=`expr $NUM1 + $NUM2`

# echo $NUM3

# if [ "$NUM1" -gt "$NUM2" ]
# then
#     echo "$NUM1 is greater than $NUM2"
# elif [ "$NUM2" -gt "$NUM1" ]
# then
#     echo "$NUM2 is greater than $NUM1"
# else
#     echo "Both equal"
# fi

# read -p "Are you 18 or over? Y/N " ANSWER
# case "$ANSWER" in
#     [yY] | [yY][eE][sS])
#         echo "You can have a beer :)"
#     ;;
#     [nN] | [nN][oO])
#         echo "Sorry, no drinking"
#     ;;
#     *)
#         echo "Please enter y/yes or n/no"
#     ;;
# esac

# NAMES="Brad Kavin Bob Alice Mark"



# for NAME in $NAMES
#     do
#         echo "Hello $NAME"
#     done

# for i in `cd / && ls`
# do
#     echo "Hello $i"
# done


# echo "The number of arg is $#"
# cnt=1
# for i in $*
# do
#     echo "The $cnt no arg is $i"
#     cnt=`expr $cnt + 1`
# done

# for((i=0;i<=50;i++))
# do
#     echo $i
# done



# var=`expr 1 + 1`
# echo $var



# 1 2 3 4 5
# 2 3 4 5
# 3 4 5
# 4 5
# 5

# read -p "Enter n: " n

# for((i=1;$i<=$n;i++))
# do
#     for((j=$i;$j<=$n;j++))
#     do
#         echo -n $j
#     done
#     echo
# done



# for((i=0;$i<=10;i++))
# do
#     if [ $(expr $i % 2) == 0 -o $(expr $i % 3) == 0 ]
#     then
#         echo $i
#     fi
# done

# read -p "Enter num1: " NUM1
# read -p "Enter num2: " NUM2
# read -p "Enter sign [+-/*]: " sign

# RESULT=0

# case "$sign" in
#     +)
#         RESULT=`expr $NUM1 + $NUM2`
#     ;;
#     -)
#         RESULT=`expr $NUM1 - $NUM2`
#     ;;
#     "*")
#         RESULT=`expr $NUM1 "*" $NUM2`
#     ;;
#     /)
#         RESULT=`expr $NUM1 / $NUM2`
#     ;;
#     *)
#         echo "Invalid Sign!"
#     ;;
# esac

# echo "Result: $RESULT"

# echo "Number of args: $#"

# for i in $*
# do
# echo $i
# done

# for((i=0;$i<=10;i++))
# do
#     if [ `expr $i % 2` == 0 -o `expr $i % 3` == 0 ]
#     then
#         echo $i
#     fi
# done