Start services, if they are not running

start_services.sh

#!/bin/bash

EXITCODE="0"

SERVICES=(
    "memcached &"
    "mongod &"
    "redis-server &"
    "neo4j start"
    "elasticsearch"
)

check_service() {
    local pid=$(pgrep -f "${1%% *}")
    echo $pid
}

start_service() {
    eval $1 > /dev/null
    if [[ $? -ne "0" ]]
    then
        EXITCODE="1"
        echo -en "\r\033[0;31m ✗\e[0m Error starting service: ${SERVICES[$i]%% *}"
    fi
}

for ((i = 0; i < ${#SERVICES[@]}; i++))
do
    unset EXEC
    if [[ -z $(check_service "${SERVICES[$i]}") ]]
    then
        echo -en "\033[0;31m ✗\033[0m ${SERVICES[$i]%% *}"
        EXEC=$(start_service "${SERVICES[$i]}")
        if [[ -z $EXEC ]]
        then
            echo -en "\r\033[0;32m ✓\033[0m ${SERVICES[$i]%% *}\n"
        else
            echo -en "$EXEC\n"
        fi
    else
        echo -e "\033[0;32m ✓\033[0m ${SERVICES[$i]%% *}"
    fi
done

exit $EXITCODE