assign command to variable linux code example

Example 1: shell script store command output in variable

#Just use following structure to store output of command into a variable:
var=$(command)
#For example:
var=$(echo 'hi')	#store hi into var
var=$(ls)	#store list of files into var

Example 2: assing a linux xommant to a variab;e

variable_name=$(command)
OR
FILES=`sudo find . -type f -print | wc -l`