whirlgif: 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 Debian possible default full paths are:

/usr/lib/wims/other/bin/whirlgif - from package: wims
/var/lib/wims/other/bin/whirlgif - from package: wims

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

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