tpm_version: 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/tpm_version - from package: tpm-tools

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

On Debian possible default full paths are:

/usr/sbin/tpm_version - from package: tpm-tools

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

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