git-review: 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/git-review - from package: git-review

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

On Debian possible default full paths are:

/usr/bin/git-review - from package: git-review

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

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