How to store command results in a shell variable? [duplicate]

Question

I want to find out the number of directories and files in home directory and store that in a shell variable. I am using the following set of commands.

command="ls -l | grep -c \"rahul.*patle\"" eval $command 

I want to store the result in a variable. How can I do this?

Answer 1

The syntax to store the command output into a variable is var=$(command).

So you can directly do:

result=$(ls -l | grep -c "rahul.*patle") 

And the variable $result will contain the number of matches.