flashcp: 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/flashcp - from package: mtd-utils

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

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