bing: 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/sbin/bing - from package: bing

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

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