stoken: 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 CentOS possible default full paths are:

/usr/bin/stoken - from package: stoken-cli

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/stoken - from package: stoken

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

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