jetring-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 Debian possible default full paths are:

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

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

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