fscp: 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
/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/fscp - from package: python-fs

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