aiksaurus: 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/aiksaurus - from package: aiksaurus

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