runit: 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:

/sbin/runit - from package: runit

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

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