sman: 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/lib/axiom-20140801/bin/sman - from package: axiom
/usr/lib/open-axiom/bin/sman - from package: open-axiom

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

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