xloadimage: 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/xloadimage - from package: xloadimage

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

On Debian possible default full paths are:

/usr/bin/xloadimage - from package: xloadimage

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

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