nps2gps: 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/nps2gps - from package: ncbi-tools-bin

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

Error in other languages:
nps2gps: bevel nie gevind nie
nps2gps: comandă negăsită
nps2gps: comando não encontrado
nps2gps: commande introuvable
nps2gps: command not found
nps2gps: käsku ei ole
nps2gps: không tìm thấy lệnh
nps2gps: komanda nerasta
nps2gps: Kommando nicht gefunden.
nps2gps: kommandot finns inte
nps2gps: komut yok
nps2gps: nie znaleziono polecenia
nps2gps: níor aimsíodh an t-ordú
nps2gps: no se encontró la orden
nps2gps: no s'ha trobat l'ordre
nps2gps: opdracht niet gevonden
nps2gps: parancs nem található
nps2gps: perintah tidak ditemukan
nps2gps: príkaz nenájdený
nps2gps: příkaz nenalezen
nps2gps: команда не найдена
nps2gps: командата не е открита
nps2gps: 命令找不到
nps2gps: コマンドが見つかりません