lcdgps: 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/lcdgps - from package: gpsd-clients

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

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