p7tool: 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/p7tool - from package: pki-native-tools

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

Error in other languages:
p7tool: bevel nie gevind nie
p7tool: comandă negăsită
p7tool: comando não encontrado
p7tool: commande introuvable
p7tool: command not found
p7tool: käsku ei ole
p7tool: không tìm thấy lệnh
p7tool: komanda nerasta
p7tool: Kommando nicht gefunden.
p7tool: kommandot finns inte
p7tool: komut yok
p7tool: nie znaleziono polecenia
p7tool: níor aimsíodh an t-ordú
p7tool: no se encontró la orden
p7tool: no s'ha trobat l'ordre
p7tool: opdracht niet gevonden
p7tool: parancs nem található
p7tool: perintah tidak ditemukan
p7tool: príkaz nenájdený
p7tool: příkaz nenalezen
p7tool: команда не найдена
p7tool: командата не е открита
p7tool: 命令找不到
p7tool: コマンドが見つかりません