offconsol: 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/offconsol - from package: geomview

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

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