fscat: 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/fscat - from package: python-fs

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