This is the mail archive of the cygwin mailing list for the Cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

How to write to shared memory?


Hi,
I have a bash loop which I have significantly sped up by using:

for ((i=0;i<=Z;i++)); do echo $i; done

instead of other format for loops as well as using internal math like:

NEWX=$(($EAST+$DX))

Instead of let or expr. This process is now heaps faster but I want to
echo the data to a file but not have to write to a file on each loop
cycle as it slows it down.

On native linux you would write:

echo $NEWX > /dev/shm/new 

and then at the end of all the loops at the end of the script write to a
file with:

cat /dev/shm/new > $OUT

--> Finally to the question. How do you do this with Cygwin?? 

Cheers,

Barrett.

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]