faxrunqd: 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/faxrunqd - from package: mgetty-sendfax

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

On Debian possible default full paths are:

/usr/sbin/faxrunqd - from package: mgetty-fax

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

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