science-meteorology: 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/science-meteorology - from package: science-meteorology

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

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