antennavis: 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/antennavis - from package: antennavis

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

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