sikuli-ide: 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/sikuli-ide - from package: sikuli-ide

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

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