latex2rtf: 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/latex2rtf - from package: latex2rtf

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

On Debian possible default full paths are:

/usr/bin/latex2rtf - from package: latex2rtf

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

Error in other languages:
latex2rtf: bevel nie gevind nie
latex2rtf: comandă negăsită
latex2rtf: comando não encontrado
latex2rtf: commande introuvable
latex2rtf: command not found
latex2rtf: käsku ei ole
latex2rtf: không tìm thấy lệnh
latex2rtf: komanda nerasta
latex2rtf: Kommando nicht gefunden.
latex2rtf: kommandot finns inte
latex2rtf: komut yok
latex2rtf: nie znaleziono polecenia
latex2rtf: níor aimsíodh an t-ordú
latex2rtf: no se encontró la orden
latex2rtf: no s'ha trobat l'ordre
latex2rtf: opdracht niet gevonden
latex2rtf: parancs nem található
latex2rtf: perintah tidak ditemukan
latex2rtf: príkaz nenájdený
latex2rtf: příkaz nenalezen
latex2rtf: команда не найдена
latex2rtf: командата не е открита
latex2rtf: 命令找不到
latex2rtf: コマンドが見つかりません