dcmd: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/dcmd - from package: devscripts

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