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

What's the difference between $(......) and ${.....}
lolaferrariAsked:
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ozoCommented:
in what context?
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lolaferrariAuthor Commented:
When outputting the value of a variable
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ozoCommented:
In what program?
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TintinCommented:
Are you referring to shell scripting?

If so, then

output=$(cmd)

is for running a command and capturing its output


${....}

has many different functions depending on the context and shell.

If it looks like

${var}

It's used to disambiguate a variable.

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

var=file.ext
echo ${var%%.ext}   # Output will be 'file'
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lolaferrariAuthor Commented:
Thanks once again tintin!
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