tuskar: command not found

Have You tried accessing the binary with the full path?

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/tuskar - from package: python-tuskarclient

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