idemo: 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/idemo - from package: ivtools-bin

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

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