dput: 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/dput - from package: dput-ng
/usr/bin/dput - from package: dput

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

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