h5fc-64: 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/h5fc-64 - from package: hdf5-devel

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

Error in other languages:
h5fc-64: bevel nie gevind nie
h5fc-64: comandă negăsită
h5fc-64: comando não encontrado
h5fc-64: commande introuvable
h5fc-64: command not found
h5fc-64: käsku ei ole
h5fc-64: không tìm thấy lệnh
h5fc-64: komanda nerasta
h5fc-64: Kommando nicht gefunden.
h5fc-64: kommandot finns inte
h5fc-64: komut yok
h5fc-64: nie znaleziono polecenia
h5fc-64: níor aimsíodh an t-ordú
h5fc-64: no se encontró la orden
h5fc-64: no s'ha trobat l'ordre
h5fc-64: opdracht niet gevonden
h5fc-64: parancs nem található
h5fc-64: perintah tidak ditemukan
h5fc-64: príkaz nenájdený
h5fc-64: příkaz nenalezen
h5fc-64: команда не найдена
h5fc-64: командата не е открита
h5fc-64: 命令找不到
h5fc-64: コマンドが見つかりません