lp-bug-dupe-properties: 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/lp-bug-dupe-properties - from package: lptools

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