paw: 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/paw - from package: paw

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

On Debian possible default full paths are:

/usr/bin/paw - from package: paw-common

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

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