faxrm: 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/faxrm - from package: hylafax+-client
/usr/bin/faxrm - from package: mgetty-sendfax

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

On Debian possible default full paths are:

/usr/bin/faxrm - from package: hylafax-client
/usr/bin/faxrm - from package: mgetty-fax

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

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