autob5: 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/autob5 - from package: zh-autoconvert

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

Error in other languages:
autob5: bevel nie gevind nie
autob5: comandă negăsită
autob5: comando não encontrado
autob5: commande introuvable
autob5: command not found
autob5: käsku ei ole
autob5: không tìm thấy lệnh
autob5: komanda nerasta
autob5: Kommando nicht gefunden.
autob5: kommandot finns inte
autob5: komut yok
autob5: nie znaleziono polecenia
autob5: níor aimsíodh an t-ordú
autob5: no se encontró la orden
autob5: no s'ha trobat l'ordre
autob5: opdracht niet gevonden
autob5: parancs nem található
autob5: perintah tidak ditemukan
autob5: príkaz nenájdený
autob5: příkaz nenalezen
autob5: команда не найдена
autob5: командата не е открита
autob5: 命令找不到
autob5: コマンドが見つかりません