xtokid: 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/xtokid - from package: id-utils

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