textfmt: 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/textfmt - from package: hylafax+-client

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

On Debian possible default full paths are:

/usr/sbin/textfmt - from package: hylafax-client
/usr/bin/textfmt - from package: hylafax-client

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

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