Difference $(....) and ${.......}

What's the difference between $(......) and ${.....}
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.

in what context?
lolaferrariAuthor Commented:
When outputting the value of a variable
In what program?
Are you referring to shell scripting?

If so, then


is for running a command and capturing its output


has many different functions depending on the context and shell.

If it looks like


It's used to disambiguate a variable.

It can also be used for various inbuilt string manipulations, eg:

echo ${var%%.ext}   # Output will be 'file'

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
lolaferrariAuthor Commented:
Thanks once again tintin!
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
Unix OS

From novice to tech pro — start learning today.