I have like 100 keystore e.g. "store15.jks" files, and a single X.509 certificate "mycert.pem". I need to find out in which "store*.jks", "mycert.pem" is imported in. What I am trying to do is to make a script to iterate 100 times and do command
keytool -list -keystore store*.jks
I initially came up with simple script like this:
#!/bin/bash
for((i=1;i<100;i++))
do
cert="mycert.pem"
str="store"$i".jks"
OUTPUT="$(keytool -list -keystore $str)"
echo $OUTPUT
done
Alas, at the first iteration already, I am prompted for keystore password, like
Enter keystore password: //3 or 4 spaces after colon
That means I'd have to enter password for every single iteration, and there must be a (much) better way to do this, i.e. a way to simulate keyboard input when password is prompted. Browsing through the Stack Overflow I found some examples using certain "Expect" scripting, but they were either rudimentary or I just couldn't manage to get it right, so I failed at combining /bash and /expect. Must say I find it a bit strange that there is no /bash technique for task that might see pretty common. I would appreciate any help, preferring example scripts. Thanks!
The easiest way to do this is to use the -storepass option which allows you to pass the password on the command line. If for some reason that does not work for you (maybe you have an earlier version), here is an expect script that works for me:
expect -c "spawn /usr/bin/keytool -list; expect \"assword:\" { exp_send \"the_password\r\"}; expect EOF {exit}"