bsh-desktop: 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 CentOS possible default full paths are:

/usr/bin/bsh-desktop - from package: bsh-desktop

You may install the required package with command yum install {package}

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