Just some example bash code.

example_bash_script.sh

#!/usr/bin/env bash

cd `dirname "$0"`                  # cd to the directory containing this script.
cd `git rev-parse --show-toplevel` # cd to the root of the git repo.

set -e # Fail on errors.
set -x # Print commands.


# Some example code below:
# ------------------------

DESIRED_MOCKERY_VERSION="1.0.0"

# Assert that mockery is installed.
if ! [ -x "$(command -v mockery)" ]; then
    echo "Error: mockery is not installed. Please install mockery $DESIRED_MOCKERY_VERSION" >&2
    exit 1
fi

# Assert that the correct version of mockery is installed.
if ! [ "$(mockery -version)" == $DESIRED_MOCKERY_VERSION ]; then
    echo "Error: The wrong version of mockery is installed. You have version $(mockery -version); version $DESIRED_MOCKERY_VERSION expected." >&2
    exit 1
fi

# Loop.
SOME_VALUES=("val1" "val2" "val3" "val4")
for V in "${SOME_VALUES[@]}"; do
    echo "$V"
done