Script to insert new line in a file in linux

[OSzilla]

Hi pals, I need help for creating a script. I have a file which has a lot of contact numbers. I have to update this file sometimes every minute or sometimes once a day. So to update and insert a new contact [or a new line] i have to open the file, then will have to search for the tag which says insert here, then update the file and then write it. Is there a simple script to do it more quickly? Please help guys...

[MrChris-]

Suppose you file name is abc and there is a file xyz which has point "<-- insert here -->" you can directly add the contents of abc below the indication. Use the following code :

perl -pi -e 's/^(<-- insert links here -->)/$1."\n".`cat zzz`/e' yyy

Hope this works...

[jesse]

You can create a perl script. Pearl script is great when it comes to working with text files. See example script :

while (<STDIN>) {
print; # prints the line to STDOUT
if (/\<-- insert text here --\>/) {
print "something to print\n"; #to add what you want
}

}

[OSzilla]

Thanks for the replies guys... Will try it out and get back to you... Thanks again..