vgremove: 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/vgremove - from package: lvm2

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

On Debian possible default full paths are:

/sbin/vgremove - from package: lvm2

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

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