lpc: 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/sbin/lpc - from package: cups-bsd
/usr/sbin/lpc - from package: lprng
/usr/sbin/lpc - from package: lpr

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

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