I've done an ls -l inside a directory, and my files are displaying like this :

james@nevada:~/development/tools/android-sdk-linux_86/tools$ ll
total 9512
drwxr-xr-x 3 james james    4096 2010-05-07 19:48 ./
drwxr-xr-x 6 james james    4096 2010-08-21 20:43 ../
-rwxr-xr-x 1 james james  341773 2010-05-07 19:47 adb*
-rwxr-xr-x 1 james james    3636 2010-05-07 19:47 android*
-rwxr-xr-x 1 james james    2382 2010-05-07 19:47 apkbuilder*
-rwxr-xr-x 1 james james    3265 2010-05-07 19:47 ddms*
-rwxr-xr-x 1 james james   89032 2010-05-07 19:47 dmtracedump*
-rwxr-xr-x 1 james james    1940 2010-05-07 19:47 draw9patch*
-rwxr-xr-x 1 james james 6886136 2010-05-07 19:47 emulator*
-rwxr-xr-x 1 james james  478199 2010-05-07 19:47 etc1tool*
-rwxr-xr-x 1 james james    1987 2010-05-07 19:47 hierarchyviewer*
-rwxr-xr-x 1 james james   23044 2010-05-07 19:47 hprof-conv*
-rwxr-xr-x 1 james james    1939 2010-05-07 19:47 layoutopt*
drwxr-xr-x 4 james james    4096 2010-05-07 19:48 lib/
-rwxr-xr-x 1 james james   16550 2010-05-07 19:47 mksdcard*
-rw-r--r-- 1 james james  205851 2010-05-07 19:48 NOTICE.txt
-rw-r--r-- 1 james james      33 2010-05-07 19:47 source.properties
-rwxr-xr-x 1 james james 1447936 2010-05-07 19:47 sqlite3*
-rwxr-xr-x 1 james james    3044 2010-05-07 19:47 traceview*
-rwxr-xr-x 1 james james  187965 2010-05-07 19:47 zipalign*

What does that asterisk mean?

I'm also unable to run a particular file, as follows :

james@nevada:~/development/tools/android-sdk-linux_86/tools$ ./emulator 
bash: ./emulator: No such file or directory

EDIT : I'm trying to get Eclipse to use emulator, but it keeps complaining the files does not exist, yet it is here?