Hello everyone,
suppose there is a very big text file (>800 mb) that each line contains an article from wikipedia. Each article begins with a tag (<..>) containing its url. Currently there are 10^6 articles in the file.
I want to take random N articles, eliminate all non-alpharithmetic characters and count the total number of words, and total number of unique words for further processing.
I have written the following script that works fine, except taking forever....
The above code (for 1000 random articles) takes around 2 minutes to run in my env. Suppose the time need for 10.000+ articles or more.
Is there a way to make this run faster? I am completely new to shell scripting and don't have much experience about how sed,tr,awk and other similar commands are supposed to be used efficiently.
Gents,
Please can u help me to improve this script to be more faster, it works perfectly but for big files take a lot time to end the job..
I see the problem is in the step (while) and in this part the script takes a lot time..
Please if you can find a best way to do will be great.
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HI Experts ,
I'm using the following code to remove spaces appearing at the end of the file.
sed "s/*$//g" <filename> > <new_filename>
mv <new_filename> <filename>
this is working fine for volumes upto 20-25 GB.
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1 . Thanks everyone who read the post first.
2 . I have a log file which size is 143M , I can not use vi open it .I can not use xedit open it too.
How to view it ?
If I want to view 200-300 ,how can I implement it
3 . Thanks (3 Replies)