apparix: 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/apparix - from package: apparix

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