xganim: 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/lib64/grass-6.4.4/bin/xganim - from package: grass

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

On Debian possible default full paths are:

/usr/lib/grass64/bin/xganim - from package: grass-gui

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

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