tpmc: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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 Debian possible default full paths are:

/usr/bin/tpmc - from package: vboot-utils

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