How do I set a variable to the output of a command in Linux Bash Shell?

You can use $(command) or command and set a variable to the output of the command in Linux Bash Shell

name=$(echo $USER)
echo $name            ## Returns your username

name=`echo $USER`
echo $name            ## Returns your username

name=$(echo $USER)

echo $name ## Returns your username

name=`echo $USER`

echo $name ## Returns your username