startBristol: 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/startBristol - from package: bristol

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

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