gpstrip: 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 CentOS possible default full paths are:

/usr/bin/gpstrip - from package: gputils

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/gpstrip - from package: gputils

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

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