Adding Files

Author: codeplusmath

1.sh

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+#!/bin/bash
+
+# creating a menu with the following options
+echo "1. Find Odd or even number"
+echo "2. Find smallest among three numbers"
+echo -n "Enter your menu choice [1-4]: "
+
+# Running a forever loop using while statement
+# This loop will run untill select the exit option.
+# User will be asked to select option again and again
+while :
+do
+
+# reading choice
+read choice
+
+# case statement is used to compare one value with the multiple cases.
+case $choice in
+  # Pattern 1
+  1)echo -n "Enter a number:"
+      read n
+      if [ `expr $n % 2` == 0 ]
+      then
+	  echo "$n is even"
+      else
+	  echo "$n is Odd"
+      fi;;
+
+  # Pattern 2
+  2)echo "enter num_1: "
+    read num1
+    echo "enter num_2: "
+    read num2
+    echo "enter num_3 : "
+    read num3
+    s=$num1
+    if [ $num2 -lt $s ]
+    then
+    s=$num2
+    fi
+    if [ $num3 -lt $s ]
+    then
+    s=$num3
+    fi
+    echo Smallest of $num1 $num2 $num3 is $s;;
+
+  # Default Pattern
+  *) echo "invalid option";;
+  
+esac
+  echo -n "Enter your menu choice [1 or 2]: "
+done

2.sh

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+#Taking two numbers from command line argument and finding grater among them .
+
+echo "num1: $1"
+echo "num2: $2"
+
+#Condition for greater number
+if [ $1 -gt $2 ]
+then
+    echo "$1 is greater than $2" 
+else
+    echo "$2 is greater than $1" 
+fi

3.sh

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+#!/bin/bash
+file="$1"
+ 
+#Checking file is writable or not 
+if [ -w "$file" ] 
+then
+   echo "TRUE.....Write permission is granted on $file"
+else
+   echo "False....Write permission is NOT granted on $file"
+fi
+
+#Checking file is executable or not 
+if [[ -x "$file" ]]
+then
+    echo "File '$file' is executable"
+else
+    echo "File '$file' is not executable or found"
+fi
+
+

4.sh

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+#!/bin/bash/
+
+DAY=$(date +"%A")
+
+case $DAY in
+
+	Monday)
+		echo -n "Monday is new start in life!!"
+		;;
+
+	Tuesday)
+		echo -n "Lets do things with same energy!!"
+		;;
+	
+	Wednesday)
+		echo -n "Happy hump day!!"
+		;;
+		
+	Thursday)
+		echo -n "Thursday brings full energy!!"
+		;;
+	
+	Friday)
+		echo -n "TGIF!!"
+		;;
+		
+	Saturday)
+		echo -n "Have a Saturday full of happiness and joy!!"
+		;;
+	
+	Sunday)
+		echo -n "Have a wonderful weekend!!"
+		;;
+
+  *)
+    echo -n "Have a nice day!!"
+    ;;
+esac

5_onecommand.sh

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+#!/bin/bash
+ls

5_separate.sh

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+# To display Files and Folders in current directory 
+
+echo "Directories : "
+for dir in * 
+do 
+   if  [ -d $dir ]
+     then
+          echo $dir
+   fi 
+     
+done
+
+echo "Files : "
+for dir in * 
+do 
+   if  [ -f $dir ]
+     then
+          echo $dir
+   fi 
+     
+done

README.MD

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+# Shell Script Assignment
+
+1. Write a menu driven program for 1. Odd or Even Number 2. Find smallest number amongst three numbers
+
+
+2. Create a Bash script which will take two numbers as command line arguments. It will print to the screen the larger of the two numbers.
+
+
+3. Create a Bash script which will accept a file as a command line argument and analyse it in certain ways. eg. you could check if the file is executable or writable. You should print a certain message if true and another if false.
+
+
+4. Create a Bash script which will print a message based upon which day of the week it is (eg. 'Happy hump day' for Wednesday, 'TGIF' for Friday etc).
+
+
+5. Write a shell script to display files and folders from current directory