davix-ls: 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-ls - from package: davix

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

On Debian possible default full paths are:

/usr/bin/davix-ls - from package: davix

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

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