keyart: 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/keyart - from package: signing-party

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

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