cowdancer-ilistdump: 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/cowdancer-ilistdump - from package: cowdancer

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