doctrine-dbal: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/doctrine-dbal - from package: php-doctrine-dbal

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/doctrine-dbal - from package: php-doctrine-dbal

You may install the required package with command apt-get install {package}

Error in other languages:
doctrine-dbal: bevel nie gevind nie
doctrine-dbal: comandă negăsită
doctrine-dbal: comando não encontrado
doctrine-dbal: commande introuvable
doctrine-dbal: command not found
doctrine-dbal: käsku ei ole
doctrine-dbal: không tìm thấy lệnh
doctrine-dbal: komanda nerasta
doctrine-dbal: Kommando nicht gefunden.
doctrine-dbal: kommandot finns inte
doctrine-dbal: komut yok
doctrine-dbal: nie znaleziono polecenia
doctrine-dbal: níor aimsíodh an t-ordú
doctrine-dbal: no se encontró la orden
doctrine-dbal: no s'ha trobat l'ordre
doctrine-dbal: opdracht niet gevonden
doctrine-dbal: parancs nem található
doctrine-dbal: perintah tidak ditemukan
doctrine-dbal: príkaz nenájdený
doctrine-dbal: příkaz nenalezen
doctrine-dbal: команда не найдена
doctrine-dbal: командата не е открита
doctrine-dbal: 命令找不到
doctrine-dbal: コマンドが見つかりません