jaspscan: command not found

Have You tried accessing the binary with the full path?

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/jaspscan - from package: emboss

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