git-reintegrate: 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/git-reintegrate - from package: git-reintegrate

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

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