bufrscan: 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/bufrscan - from package: grads

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

On Debian possible default full paths are:

/usr/bin/bufrscan - from package: grads

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

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