xk@hell:~$ ls -ld jd2/*
-rw-r--r-- 1 xk xk     319 Jan 11 22:09 jd2/build.json
drwxr-xr-x 5 xk xk   20480 Jan 11 22:10 jd2/cfg
-rw-r--r-- 1 xk xk 6453256 Jan 11 20:20 jd2/Core.jar
-rw-r--r-- 1 xk xk   77919 Jan 11 22:10 jd2/error.log
drwxr-xr-x 2 xk xk    4096 Jan 11 20:20 jd2/extensions
drwxr-xr-x 2 xk xk    4096 Jan 11 20:20 jd2/java
drwxr-xr-x 4 xk xk    4096 Jan 11 20:20 jd2/jd
-rwxr-xr-x 1 xk xk   10776 Mar 20  2015 jd2/JDownloader2
-rwxr-xr-x 1 xk xk     195 Jan 11 20:20 jd2/JDownloader 2.desktop
-rwxr-xr-x 1 xk xk   10863 Mar 20  2015 jd2/JDownloader2Update
-rwxr-xr-x 1 xk xk     223 Jan 11 20:20 jd2/JDownloader 2 Update & Rescue.desktop
-rw-r--r-- 1 xk xk      31 Mar 20  2015 jd2/JDownloader2Update.vmoptions
-rw-r--r-- 1 xk xk      31 Mar 20  2015 jd2/JDownloader2.vmoptions
-rwxr--r-- 1 xk xk 2847085 Jan 11 20:18 jd2/JDownloader.jar
drwxr-xr-x 5 xk xk    4096 Jan 11 20:18 jd2/jre
drwxr-xr-x 6 xk xk    4096 Jan 11 20:20 jd2/libs
-rw-r--r-- 1 xk xk   39624 Jan 11 20:20 jd2/license_german.txt
drwxr-xr-x 3 xk xk    4096 Jan 11 20:20 jd2/licenses
-rw-r--r-- 1 xk xk   32034 Jan 11 20:20 jd2/license.txt
drwxr-xr-x 6 xk xk    4096 Jan 11 22:08 jd2/logs
-rw-r--r-- 1 xk xk   38142 Jan 11 22:10 jd2/output.log
drwxr-xr-x 4 xk xk    4096 Jan 11 20:20 jd2/themes
drwxr-xr-x 6 xk xk    4096 Jan 11 22:10 jd2/tmp
drwxr-xr-x 3 xk xk    4096 Jan 11 20:20 jd2/tools
drwxr-xr-x 5 xk xk    4096 Jan 11 20:20 jd2/translations
-rwx------ 1 xk xk   11729 Mar 20  2015 jd2/Uninstall JDownloader
drwxr-xr-x 3 xk xk    4096 Jan 11 20:18 jd2/update

xk@hell:~$ ls -ld /bin/jd2
lrwxrwxrwx 1 root root 4 Jan 12 10:18 /bin/jd2 -> jd2/ (color is red,same as linking a single file JDownloader2)