Member Avatar for shraddha_gupta

echo 'expr 2 +3'
prints expr 2 + 3
(instead of printing 5)
I had read this in book as well as online that within single quotes the expression is evaluated, but on running it is being printed as it is. Is there any dependence on shell . Well, I have tried on Bourne and Korn shell and its not working . Can u Give me some alternative for this and tell me the reason why it is not working?

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  • Latest Post Latest Post by DimaYasny
Member Avatar for John A

You're getting the quote character confused with the backtick character. If you run

echo `expr 2 + 3`

you'll get the expected output.

Alternatively, you can also use $(command) as well, which has the same effect:

echo $(expr 2 + 3)
Member Avatar for shraddha_gupta

echo ' expr 2 + 3' is not working. i cannot figure out why?? Well thanks for the alternative answer. It worked out.

Member Avatar for DimaYasny

why? because it shouldn't.

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