read: 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/lib/plan9/bin/read - from package: 9base

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

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