RosettaCodeData/Task/Shell-one-liner/UNIX-Shell/shell-one-liner-4.sh

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$ VAR=`echo hello`   # obsolescent backtick notation
$ VAR=$(echo hello)  # modern POSIX notation
$ (echo hello)       # execute in another shell process, not in this one
	$ VAR=`echo hello` # obsolescent backtick notation
	`$ VAR=$(echo hello) # modern POSIX notation`
	`$ (echo hello) # execute in another shell process, not in this one`