keylaunch: 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/keylaunch - from package: keylaunch

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

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