- Perl Script: How to seek through the file

Perl provides two functions which enable you to skip forward or backward in a file so that you can skip or re-read data.

seek - moves backward or forward
tell - returns the distance in bytes, between the beginning of the file and the current position of the file

The syntax for the seek function is:
seek (file, distance, from)

As you can see, seek requires three arguments:

file: which is the file variable representing the file in which to skip
distance: which is an integer representing the number of bytes (characters) to skip
from:which is either 0, 1, or 2

-- 0 :  the number of bytes to skip from beginning of the file.
-- 1 :  the number of bytes to skip from current location of the file.
-- 2 :  the number of bytes to skip from end of the file.

Below is simple Perl script which demonstrate the usage of seek and tell.
Continue Reading...


source:http://linuxpoison.blogspot.com/2012/10/13578167758740.html

Labels

Web Search Gmail Google Docs Mobile YouTube Google Maps Google Chrome User interface Tips iGoogle Social Google Reader Traffic Making Devices cpp programming Ads Image Search Google Calendar tips dan trik Google Video Google Translate web programming Picasa Web Albums Blogger Google News Google Earth Yahoo Android Google Talk Google Plus Greasemonkey Security software download info Firefox extensions Google Toolbar Software OneBox Google Apps Google Suggest SEO Traffic tips Book Search API Acquisitions InOut Visualization Web Design Method for Getting Ultimate Traffic Webmasters Google Desktop How to Blogging Music Nostalgia orkut Google Chrome OS Google Contacts Google Notebook SQL programming Google Local Make Money Windows Live GDrive Google Gears April Fools Day Google Analytics Google Co-op visual basic Knowledge java programming Google Checkout Google Instant Google Bookmarks Google Phone Google Trends Web History mp3 download Easter Egg Google Profiles Blog Search Google Buzz Google Services Site Map for Ur Site game download games trick Google Pack Spam cerita hidup Picasa Product's Marketing Universal Search FeedBurner Google Groups Month in review Twitter Traffic AJAX Search Google Dictionary Google Sites Google Update Page Creator Game Google Finance Google Goggles Google Music file download Annoyances Froogle Google Base Google Latitude Google Voice Google Wave Google Health Google Scholar PlusBox SearchMash teknologi unik video download windows Facebook Traffic Social Media Marketing Yahoo Pipes Google Play Google Promos Google TV SketchUp WEB Domain WWW World Wide Service chord Improve Adsence Earning jurnalistik sistem operasi AdWords Traffic App Designing Tips and Tricks WEB Hosting linux How to Get Hosting Linux Kernel WEB Errors Writing Content award business communication ubuntu unik