gpscat: 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/gpscat - from package: python-gps

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

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