ucblogo: 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/ucblogo - from package: ucblogo

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

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