rst2latex: 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/rst2latex - from package: python-docutils

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

Error in other languages:
rst2latex: bevel nie gevind nie
rst2latex: comandă negăsită
rst2latex: comando não encontrado
rst2latex: commande introuvable
rst2latex: command not found
rst2latex: käsku ei ole
rst2latex: không tìm thấy lệnh
rst2latex: komanda nerasta
rst2latex: Kommando nicht gefunden.
rst2latex: kommandot finns inte
rst2latex: komut yok
rst2latex: nie znaleziono polecenia
rst2latex: níor aimsíodh an t-ordú
rst2latex: no se encontró la orden
rst2latex: no s'ha trobat l'ordre
rst2latex: opdracht niet gevonden
rst2latex: parancs nem található
rst2latex: perintah tidak ditemukan
rst2latex: príkaz nenájdený
rst2latex: příkaz nenalezen
rst2latex: команда не найдена
rst2latex: командата не е открита
rst2latex: 命令找不到
rst2latex: コマンドが見つかりません