metche: 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/sbin/metche - from package: metche

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

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