dpkg-remove: 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/sbin/dpkg-remove - from package: dlocate

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

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