patool: 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/patool - from package: patool

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

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