gitps: 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/gitps - from package: gnuit

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

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