Shell Programming and Scripting

Deal all,

I have a directory called [msc]
I want to know how many MBs are transferred to it every 2 hours.
How can I do this?

Any ideas?

I have a simple idea but I can't translate it into shell script, the idea is:
1- get the size of the folder now, using [du -sm]
2- then get the size of the folder after 2 hours, using the same command.
3- then by subtracting the second value from the first value, I will get the increased rate in MBs.

How can I translate this idea into shell script?


Thanks

You started off quite promisingly. Use what you posted and build a loop around it (assuming you know the necessary (shell) commands).

So where are you stuck? Did you try implementing your idea?

You probably need

Code:

while : #start infinite loop
do
 #do your stuffs (du -sm) and redirect to file
 #wait for 2hr #man sleep
done

Search within the forum if you need help for specific command mentioned above or ask here.

So as a return question, what is your operating system?

If you are AIX, then have a look at filemon

I have not used it for years, but I think it may do what you want and whilst it may be easy to log growth, filemon can (I think) give you IO rates and you can consider the effect of files being deleted too. Without this, your figures may be skewed if there is someone clearing out old data and you just measure the start and end usage.



I hope that this helps,

Robin
Liverpool/Blackburn
UK

Dear Sir,

Not AIX, it is Redhat Linux

---------- Post updated at 11:54 PM ---------- Previous update was at 11:53 PM ----------

Dear Sir, I will apply your answer and tell you if anything is not ok.
Many thanks for your useful post.