tercpp: 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 Debian possible default full paths are:

/usr/bin/tercpp - from package: tercpp

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

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