fsharpc: 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/fsharpc - from package: fsharp

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

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