pawserv: 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/pawserv - from package: cernlib-packlib

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

On Debian possible default full paths are:

/usr/sbin/pawserv - from package: pawserv

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

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