ctioga2: 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/ctioga2 - from package: ctioga2

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

Error in other languages:
ctioga2: bevel nie gevind nie
ctioga2: comandă negăsită
ctioga2: comando não encontrado
ctioga2: commande introuvable
ctioga2: command not found
ctioga2: käsku ei ole
ctioga2: không tìm thấy lệnh
ctioga2: komanda nerasta
ctioga2: Kommando nicht gefunden.
ctioga2: kommandot finns inte
ctioga2: komut yok
ctioga2: nie znaleziono polecenia
ctioga2: níor aimsíodh an t-ordú
ctioga2: no se encontró la orden
ctioga2: no s'ha trobat l'ordre
ctioga2: opdracht niet gevonden
ctioga2: parancs nem található
ctioga2: perintah tidak ditemukan
ctioga2: príkaz nenájdený
ctioga2: příkaz nenalezen
ctioga2: команда не найдена
ctioga2: командата не е открита
ctioga2: 命令找不到
ctioga2: コマンドが見つかりません