audisp-remote: 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:

/sbin/audisp-remote - from package: audispd-plugins

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

On Debian possible default full paths are:

/sbin/audisp-remote - from package: audispd-plugins

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

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