vimtutor: 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/vimtutor - from package: vim-enhanced

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

On Debian possible default full paths are:

/usr/bin/vimtutor - from package: vim-runtime

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

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