paraclu: 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/paraclu - from package: paraclu

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

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