Help for shell-script on android

[vonvic]

I am trying to make a yes or no shell-script but it doesn't work on my rooted android phone. Right now it works on xubuntu but not on android.
Here's the script:

clear
echo Yes or no
Read answer

If [ $answer == yes ]; then
Echo you chose yes

elif [ $answer == no ]; then
echo you chose no

else
echo please pick yes or no

fi

But after that I get:
yn.sh[5]: syntax error: 'then' unexpected

[Lars Noodén]

What kind of error are you getting when you try to run it?

There are several typos involving capitalization, and read can be done differently, but the main problem looks like it is missing what it should run (#!)

#!/bin/sh
clear
read -p "Yes or No: " answer

if [ "yes" = "${answer}" ]; then
echo you chose yes

elif [ "no" = "${answer}" ]; then
echo you chose no

else
echo please pick yes or no

fi

Note that /bin/sh is the more standard, portable dash not the tricked out non-standard bash.

Edit: fixed string comparisons

[vonvic]

Now I get
yn.sh[3] read: -p: no coprocess
yn.sh[5] syntax error: 'then' unexpected

[Lars Noodén]

My mistake, I rushed through that. The test comparison for strings in the shell is = not == Also it should be wrapped in quotes. So it should be written like this:

"yes" = "${answer}"

See these links for more details:

http://mywiki.wooledge.org/BashPitfalls
http://mywiki.wooledge.org/FullBashGuide