jedit: 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/jedit - from package: jedit

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

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