bisho: 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/bisho - from package: bisho

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

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