dumpRSAPublicKey: 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/dumpRSAPublicKey - from package: vboot-utils

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

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