stinit: 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:

/sbin/stinit - from package: mt-st

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

On Debian possible default full paths are:

/sbin/stinit - from package: mt-st

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

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