hugeadm: 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/hugeadm - from package: libhugetlbfs-utils

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

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