imv: 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/imv - from package: renameutils

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

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