wmlmove: 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/wmlmove - from package: wesnoth-tools

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

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