haveged: 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/haveged - from package: haveged

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

On Debian possible default full paths are:

/usr/sbin/haveged - from package: haveged

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

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