cvm-v1checkpassword: 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/cvm-v1checkpassword - from package: cvm

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

Error in other languages:
cvm-v1checkpassword: bevel nie gevind nie
cvm-v1checkpassword: comandă negăsită
cvm-v1checkpassword: comando não encontrado
cvm-v1checkpassword: commande introuvable
cvm-v1checkpassword: command not found
cvm-v1checkpassword: käsku ei ole
cvm-v1checkpassword: không tìm thấy lệnh
cvm-v1checkpassword: komanda nerasta
cvm-v1checkpassword: Kommando nicht gefunden.
cvm-v1checkpassword: kommandot finns inte
cvm-v1checkpassword: komut yok
cvm-v1checkpassword: nie znaleziono polecenia
cvm-v1checkpassword: níor aimsíodh an t-ordú
cvm-v1checkpassword: no se encontró la orden
cvm-v1checkpassword: no s'ha trobat l'ordre
cvm-v1checkpassword: opdracht niet gevonden
cvm-v1checkpassword: parancs nem található
cvm-v1checkpassword: perintah tidak ditemukan
cvm-v1checkpassword: príkaz nenájdený
cvm-v1checkpassword: příkaz nenalezen
cvm-v1checkpassword: команда не найдена
cvm-v1checkpassword: командата не е открита
cvm-v1checkpassword: 命令找不到
cvm-v1checkpassword: コマンドが見つかりません