Last week i saw interactive shell running in the juju-quickstart . It is really cool.So i search about interactive shell scripting techniques available in Linux.So i found one of the famous method is "Whiptail" . Basically these scripting used for displaying dialog boxes which used to get user Inputs.So I have created Sample Interactive shell Scripting using dialog boxes.
First Screen Start with Menus.
This is the confirm box with yes / no option.
This is the Password box. In this script i have put another Input box.
This is the Progress bar in "whiptail".Here i will put the bash script file.
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| #!/bin/bash
# Whiptail is the interactive shell Scrpting
OPTION=$(whiptail --title "Whiptail Shell Script Menu" --menu "Choose your option" 15 60 4 \
"1" "Change Password" \
"2" "Change UserName" \
"3" "Change Email" \
"4" "exit" 3>&1 1>&2 2>&3)
exitstatus=$?
if [ $exitstatus = 0 ]; then
echo "Your chosen option:" $OPTION
case $OPTION in
1) echo "Option1 Selected"
if (whiptail --title "Change Password" --yes-button "Yes" --no-button "No" --yesno "Do you need to changed Password ?" 10 60) then
echo "password Selection Yes$?."
# Start Password Box
PASSWORD=$(whiptail --passwordbox "please enter your secret password" 8 78 --title "Change Password" 3>&1 1>&2 2>&3)
# A trick to swap stdout and stderr.
# Again, you can pack this inside if, but it seems really long for some 80-col terminal users.
exitstatus=$?
if [ $exitstatus = 0 ]; then
echo "User selected Ok and entered " $PASSWORD
touch sample_out_put.txt
echo $PASSWORD > sample_out_put.txt
# Start Progress Bar
{
for ((i = 0 ; i <= 100 ; i+=5)); do
sleep 0.3
echo $i
done
} | whiptail --gauge "Password Updating.." 6 50 0
# End Progress Bar
else
echo "User selected Cancel."
fi
# End Password Box
else
echo "Password Selection No$?."
fi
;;
2) echo "option2 Selected"
# Change User Name Box
NAME=$(whiptail --inputbox "Change Username " 8 78 --title "Changed UserName" 3>&1 1>&2 2>&3)
exitstatus=$?
if [ $exitstatus = 0 ]; then
echo "UserName Changed " $NAME
if (whiptail --title "Confirm Change UserName" --yes-button "Yes" --no-button "No" --yesno "Do you need to changed UserName ?" 10 60) then
echo "Username Confirm Yes$?."
# Start Progress Bar
{
for ((i = 0 ; i <= 100 ; i+=5)); do
sleep 0.3
echo $i
done
} | whiptail --gauge "UserName Updating.." 6 50 0
# End Progress Bar
else
echo"Confirm Failed"
fi
else
echo "UserName Not Changed"
fi
;;
3) echo "Option3 Selected"
;;
4) echo "exit"
{
for ((i = 0 ; i <= 100 ; i+=5)); do
sleep 0.1
echo $i
done
} | whiptail --gauge "exit..." 6 50 0
esac
else
echo "You chose Cancel."
fi
|
And Happy Coding....
