Would turning off permissions instead of unlinking work on HP-UX?
That operation would be legal. It's not clear that this would be enough to satify the condition of the challenge. A chmod command would reverse that. The challenge seems to imply a more complete form of self-destruction such that a second compile of the source code would be in order.
This is another way of going about it:
You can run this only once. Tested on Solaris 10. Dunno about HP-UX. Am trying to get a system so that I can test this.
-Edit:
You won't know what has happened either. The file is still there, still the same size too, but it won't run anymore.
It is not possible to write an exe file when it is in use or busy. Same thing happens when a program which is running for hours together when updated with a new copy of the binary; the operation will is not permitted. Would say the text file is currently busy.
This is the error when ran in FC3
I could find that after perror the operation still continues to write to the file without a valid file descriptor which is not the proper way.
Working on a new cybersecurity, dystopian world series and made a short 2 min teaser today.
Cyber Dystopia (720 HD)
https://www.youtube.com/watch?v=g9Ca07J_YC8
If anyone has any ideas for the story, please write out some story lines in the comments and join the production team! (1 Reply)
G'day,
Here's a teaser for a sed guru, which I surely am not one, as even my
basic sed skills are rusted from years of not practising ... lol
Ok ... we have a string of digits such as:
632413741610252847552619172459483022433027602515212950543016701812771409213148672112
we want it split... (9 Replies)
A global group of scientists are spending the next ten years and a billion dollars to try and develop a computer simulation of the brain:
https://www.humanbrainproject.eu/
I always found it fascinating that the brain can understand itself. This almost sounds like in a few years the computer... (0 Replies)
Hi Gurus,
To the Brain Teaser, if I add another condition, say the executable should not be altered, how the program should be altered? (no perl please, purely C). I forgot to mention this condition my staff had mentioned. ( forgot then and got now :D )
The program executed the first time... (4 Replies)
Hi gurus,
I have done my best to be as precisely as possible with this.
Besides giving the format of file a and file b and the result file
I have also given the algorithm as I have figured out.
I will try to do this and I hope that some of you could help
me to solve this or better yet... (1 Reply)
Hi,
Can anybody provide me Pointers to Practice tests or any Material to prepare for Brainbench certification in Unix Shell Scripting? Also how good is this Certification for UNIX programmers. Is it worth it? I'm planning to take this certification in 2 weeks. Kindly let me know all the pros... (0 Replies)