weboorrents: 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/bin/weboorrents - from package: weboob

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

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