skycat: 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/skycat - from package: skycat

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

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