pywxrc: 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/pywxrc - from package: wxPython

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

On Debian possible default full paths are:

/usr/bin/pywxrc - from package: python-wxtools

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

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