jasper: 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/jasper - from package: jasper

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

On Debian possible default full paths are:

/usr/bin/jasper - from package: libjasper-runtime

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

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