timelimit.netpipes: 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/timelimit.netpipes - from package: netpipes

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

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