i386: 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/bin/i386 - from package: util-linux-ng

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

On Debian possible default full paths are:

/usr/bin/i386 - from package: util-linux

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

Error in other languages:
i386: bevel nie gevind nie
i386: comandă negăsită
i386: comando não encontrado
i386: commande introuvable
i386: command not found
i386: käsku ei ole
i386: không tìm thấy lệnh
i386: komanda nerasta
i386: Kommando nicht gefunden.
i386: kommandot finns inte
i386: komut yok
i386: nie znaleziono polecenia
i386: níor aimsíodh an t-ordú
i386: no se encontró la orden
i386: no s'ha trobat l'ordre
i386: opdracht niet gevonden
i386: parancs nem található
i386: perintah tidak ditemukan
i386: príkaz nenájdený
i386: příkaz nenalezen
i386: команда не найдена
i386: командата не е открита
i386: 命令找不到
i386: コマンドが見つかりません