xfimage: command not found

Have You tried accessing the binary with the full path?

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 Debian possible default full paths are:

/usr/bin/xfimage - from package: xfe

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