waitfor: 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/waitfor - from package: libpam-sshauth

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

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