cupsaccept: 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
/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/sbin/cupsaccept - from package: cups

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

On Debian possible default full paths are:

/usr/sbin/cupsaccept - from package: cups-client

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