freeroute.jnlp: 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/freeroute.jnlp - from package: kicad

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

On Debian possible default full paths are:

/usr/bin/freeroute.jnlp - from package: kicad

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

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