wpd2odt: 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/wpd2odt - from package: wpd2odt

You may install the required package with command apt-get install {package}
Error in other languages:
wpd2odt: bevel nie gevind nie
wpd2odt: comandă negăsită
wpd2odt: comando não encontrado
wpd2odt: commande introuvable
wpd2odt: command not found
wpd2odt: käsku ei ole
wpd2odt: không tìm thấy lệnh
wpd2odt: komanda nerasta
wpd2odt: Kommando nicht gefunden.
wpd2odt: kommandot finns inte
wpd2odt: komut yok
wpd2odt: nie znaleziono polecenia
wpd2odt: níor aimsíodh an t-ordú
wpd2odt: no se encontró la orden
wpd2odt: no s'ha trobat l'ordre
wpd2odt: opdracht niet gevonden
wpd2odt: parancs nem található
wpd2odt: perintah tidak ditemukan
wpd2odt: príkaz nenájdený
wpd2odt: příkaz nenalezen
wpd2odt: команда не найдена
wpd2odt: командата не е открита
wpd2odt: 命令找不到
wpd2odt: コマンドが見つかりません