davix-mv: 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/davix-mv - from package: davix

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

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