Concatenate multiple CSV file into one file

1st put all your csv file into one folder or directory and then create a new csv file on same directory.

suppose all file are placed into directory d:

go to cmd prompt
then follow this procedure

d:\>copy d:\*.csv New_file_name.csv //press enter//


then u can see all file content copied into new file

adadad

sdsfds

How to play VOIP calls

VOIP calls playing

How do I clean Virtual Memory?/increase?

(On windows XP/Win server)

1. right click on My computer and go to properties
2. go to advanced Tab
3. In performance groupbox click on settings button
4. go to advanced tab
5. In Virtual Memory groub box click on change button


Now u can change virtual memory from here. Plz note if u donot press the set button after making changes then the changes are lost.

Linux Advanced Routing & Traffic Control

voice protocol

protocol

CIDR-subnetting

subnetting-CIDR