h5c++: 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/h5c++ - from package: hdf5-devel

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

On Debian possible default full paths are:

/usr/bin/h5c++ - from package: hdf5-helpers

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

Error in other languages:
h5c++: bevel nie gevind nie
h5c++: comandă negăsită
h5c++: comando não encontrado
h5c++: commande introuvable
h5c++: command not found
h5c++: käsku ei ole
h5c++: không tìm thấy lệnh
h5c++: komanda nerasta
h5c++: Kommando nicht gefunden.
h5c++: kommandot finns inte
h5c++: komut yok
h5c++: nie znaleziono polecenia
h5c++: níor aimsíodh an t-ordú
h5c++: no se encontró la orden
h5c++: no s'ha trobat l'ordre
h5c++: opdracht niet gevonden
h5c++: parancs nem található
h5c++: perintah tidak ditemukan
h5c++: príkaz nenájdený
h5c++: příkaz nenalezen
h5c++: команда не найдена
h5c++: командата не е открита
h5c++: 命令找不到
h5c++: コマンドが見つかりません