Shell Programming and Scripting

Dear All,

Pleae help me guiding a way to create a logic where when someone try to run a script manually, some general instruction should be displayed first, if user agrees all those instruction and further wants to execute the script he/she should type "YES". After enterning "YES" than script should executed otherwise it should exit.

For the case of instruction i can display them easily, just i need the logic for "YES"

Please advice...

Waiting anxiously

you can use logic like conditional test on input data
using IF,CASE,WHILE etc... its better to use CASE..

Thankz vidyadhar85,

It would be better if u write a code for it for my better understanding.

Thankz in advance.

try something like this

Code:

echo "enter your ans:\c"
read ans
case "$ans" in
"YES"|"Y" );;
*)echo "wrong input";;
esac

Thankz a lot for the reply it worked

but now the problem is that when it write anyting without "YES" or "Y" (e.g NO) the script, do execute, whereas i want if user write anything except "YES" or "Y" the script exist without executing the rest commands.


For this case i wrote (esac) at the end of the script, also at the place where you wrote in both cases scripts gets executed..

Please advice from this prespective.

write exit in * of case
*)exit;;

Code:

echo "enter your ans:\c"
read ans
case "$ans" in
"YES"| "Y") echo "ok ro proceed" ;;
*)echo "wrong input..exiting"; exit 1;;
esac
date

-Devaraj Takhellambam