fc: 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/fc - from package: f2c

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

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