jclicauthor: 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

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/jclicauthor - from package: jclic

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