gvimtutor: 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/gvimtutor - from package: vim-X11

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

On Debian possible default full paths are:

/usr/bin/gvimtutor - from package: vim-gui-common

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

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