clawsker: 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/clawsker - from package: clawsker

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

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