gnome-maps: 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/gnome-maps - from package: gnome-maps

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

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