tcpbso: 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/tcpbso - from package: ion

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

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