anytun-showtables: 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/anytun-showtables - from package: anytun

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

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