LinuxQuestions.org - Execution place

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Hello,

I don't understand why the following happens when I try to launch an exec from the terminal:

When I am in the same directory of the exec IT DOES NOT WORK:

Code:

giorgio@belva:~/eclipse$ eclipse

The program 'eclipse' is currently not installed.  You can install it by typing:

sudo apt-get install eclipse-platform

BUT IF I am one step higher in the directories' hierarchy IT DOES WORK:

Code:

giorgio@belva:~$ eclipse/eclipse

This happens with all exec in every place...
Why is that?
Thank you in advance for your help!

Your directory is not in the $PATH variable, and Linux never looks in the current directory. If you go one level up and specify a subdirectory Linux knows where to look.

As you say if I specify "./" before the name of the Exec he knows where to look at! Thank you!