inheritb: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/bin/inheritb - from package: pvm-examples

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