how to store command output in variable in shell script code example

Example 1: save output of command to craible bash

password=$(openssl rand -base64 32)
echo $password

Example 2: store result of command in variable bash

variable=$(command [option…] argument1 arguments2 …)

Example 3: save output of command to variable bash

OUTPUT="$(ls -1)"
echo "${OUTPUT}"

MULTILINE=$(ls \
   -1)
echo "${MULTILINE}"

Example 4: assing a linux xommant to a variab;e

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

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