bptrace: 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/bptrace - from package: ion

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

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