tracetopends: 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/tracetopends - from package: libtrace-tools

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

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