pesign: 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/pesign - from package: pesign

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

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