ode: 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 CentOS possible default full paths are:

/usr/bin/ode - from package: plotutils

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/ode - from package: plotutils

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

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