gtimelog: 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/gtimelog - from package: gtimelog

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

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