pyside-rcc: 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 Debian possible default full paths are:

/usr/bin/pyside-rcc - from package: pyside-tools

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

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