redir: 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 CentOS possible default full paths are:

/usr/sbin/redir - from package: redir

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/redir - from package: redir

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

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