patsend: 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/patsend - from package: dist

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

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