choptest: 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/sbin/choptest - from package: hylafax+

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

On Debian possible default full paths are:

/usr/sbin/choptest - from package: hylafax-server

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

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