rc-depend: 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:

/lib/rc/bin/rc-depend - from package: openrc

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

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