sredird: 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/sbin/sredird - from package: sredird

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

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