caiksaurus: 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/caiksaurus - from package: aiksaurus

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

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