HELP!! Having trouble with bash script - need quick response

Here's where I'm stuck

temphigh=$(cat $d/temphigh | sed 's/ //g');
templow=$(cat $d/templow | sed 's/ //g');
actualtemp=$(cat $d/temperature | sed 's/ //g');

I have the sed part in there because the file has leading spaces:


What I can't get is I need to compare the actualtemp to temphigh and templow

But how do I compare these values - when -lt and -gt needs integer??

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

if perl -e 'exit ( (shift) < (shift)); '  $temphigh $templow ; then  echo low ; fi
Tigger996Author Commented:
I'm pretty new to this - I don't quite understand that script

if awk "BEGIN{ exit $temphigh < $templow }" ; then echo high ; fi

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Tigger996Author Commented:
Thanks for your code: I used the awk one but how come the logic is backwards.  Because logically if actualtemp is < templow shouldn't it echo low not high?  It works if I do it backwards.  But just wondering why it is like this.

Because of the convention that a 0 exit value is used for a success, and a non-zero exit value is used to indicate a failure.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux OS Dev

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.