printerbanner: 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/printerbanner - from package: bsdmainutils

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

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