How to improve speed of reading a huge file?

[lutech]

I have to get some information by checking whole file line by line. I tried use scriptlike "cat file_name|while read line" to do it, but it takes long time. for example, a 10Mbytes file will take more than 10 minutes.
Is there any better way to reduce the reading time?

Thanks in advance.

 

[pmcmicha]

The question, what are you looking for? You could just write a script to grep out what you want since grep is relatively quick or you could write a PERL script for the processing since this is what PERL was made for.