[SOLVED] Shell Script continue option?

[smirnoff76]

I have been using ubuntu now for about 2 months and I have just put together my very first script which is simply a script doing an update of the apt source and then installing various software packages finishing off with an autoclean.

I am wanting to put in the script an option that prompts the user for input basically saying "do you wish to continue, press (Y) for yes and (N) for no)" obviously hitting n would end the script dead and pressing Y would carry it on to the next section of the script i.e. installing the packages, the problem is I dont know how to script the user input part can anyone help??

Thanks in advance

[knattlhuber]

echo "Do you wish to continue, press (Y) for yes and (N) for no"
read answer
echo "You chose: $answer"

Instead of line 3, you would obviously put an if..then statement

[cdenley]

Something like this?

#!/bin/sh
echo -n "input (y/n): "
read INPUT
if [ $INPUT = "yes" -o $INPUT = "y" ]; then
echo you said yes
else
echo you said no
fi


or you could use zenity

#!/bin/sh
zenity --question --text "continue?"
if [ $? -eq 0 ]; then
echo you said yes
else
echo you said no
fi

[geirha]

If you use bash instead of sh (#!/bin/bash as the first line of the script), you could do something like:


read -n1 -p "Sure you want me to do whatever I'm about to do? [y/N] "
[[ [Yy] =~ $REPLY ]] || exit 0


The second line's logic is: If the reply from the read command is 'Y' or 'y', do nothing, else exit. So anything but Y and y will exit the script.

Check out the beginners and advanced bash scripting guides at http://tldp.org . They contain alot of examples.

[smirnoff76]

Brilliant thanks for the help guys!!