delete files which have no extensions
 

how to delete only files which have no extensions in the directories. but other files should exist.

Why...? I mean its easy enough, but are you sure?

if it is easy for u dude then wat abt me its not easy for me thats d reason i asked the question if u know plz answer me.

or even

will tell you. But I'm standing by it... are you absolutely sure thats what you want to do? Also, please don't use text talk on these forums; its often hard enough to understand what people mean without having to decipher further.

Use the midnight commander (mc) from a terminal window.

Not quite; OP wants a single line script. He/She could do it any number of ways without needing to ask if this were the case.

Not to mention that this requires mc, or installing it.

It's a "homework" Q.

find . -type f ! -name "*.*" -exec rm '{}' \;

In the original post is no reference to a single line of script. mc is installed always (afaik). mc is intuitive and failsafe. mc asks you if you are sure. mc is a fine program, also for experienced linuxers.

yeah and we're fixing it so he can get an 'A' so he can steal our job in a few years.... :0(

I don't think that will be an issue.

It won't. 'Cause if he/she ever stoles your job, the first thing he/she will do is post to LQ asking for help :D Just point his/her boss in the "right" direction (or hyperlink for that matter)

Well, me and my friends (we publish about microcontroller programming) got sick and tired from the requests from India and Pakistan for help with their projects. The arrogance drips from these mails. They wanted it for free, immediate delivery, with full documentations and source code (tested to run of course).

We don't even look at these 'requests for help' anymore. Especially since an indian engineer, studying in UK, told us that many IED roadside explosives were based on simple microcontrollers like PIC and AVR8. Helping such a poor engineer might as well kill one of our own soldiers..

Lots of dutch companies have their research done in India. For the money. What they produce in results is aweful. Still, these guys are cheap and if you spawn 6 teams, one might come up with a sensible solution.