codeaster-get: command not found

Have You tried accessing the binary with the full path?

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/codeaster-get - from package: code-aster-run

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