dccpcli: 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/dccpcli - from package: ion

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

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