cpipe: 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/cpipe - from package: cpipe

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

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