metalint: 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 Debian possible default full paths are:

/usr/bin/metalint - from package: dist

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

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