artswrapper: 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/artswrapper - from package: arts

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

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