ecryptfs-verify: 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/ecryptfs-verify - from package: ecryptfs-utils

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

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