Pixie_show: 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/Pixie_show - from package: Pixie

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

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