xfsinvutil: 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/sbin/xfsinvutil - from package: xfsdump

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

On Debian possible default full paths are:

/usr/sbin/xfsinvutil - from package: xfsdump

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

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