lpoptions: 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 CentOS possible default full paths are:

/usr/bin/lpoptions - from package: cups

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/lpoptions - from package: cups-client

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

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