Shell Programming and Scripting

frnds..

can i perform an OR operation in sed syntax ?
if yes.. how?

I need to search for some 2-3 mail addresses in multiple files and delete all those... and instead of them.. I need to insert a new mail id...( these are also other emails in that list .. which sud not be affected )

is sed 'll be a good choice...??
or is there any other way to make it more effective...

Thnks

post your sample file

Are all those email ids in a single line ? Or one per line ? Will you replace all those 3 mail ids with just 1 mail id or will you replace each one with 1 mail id ?

If one per line, then

Code:

sed -i -e "/john\@doe.com/d" -e "/foo\@bar.com/d" file.txt file1.txt

If it all-in-one-line or just scattered all over the place, then

Code:

sed -i -e "s/john\@doe.com//g" -e "s/foo\@bar.com//g"  file.txt file1.txt

hi vino , ghostdog74

I have this line in my files....( some 40-45 files )

MailRecipients="a.k@l.com a.s@l.com t.g@s.com r.a@l.com d@s.com"

email ids are space delimited with having " ( in the start of first id and at the end of last id ).

now i want to remove say a.s@l.com and r.a@l.com

and to add another id s.p@l.com. in the list.


how can i manage??

@vino:
I can remove the required ids with the command u have given...
but how 'll i insert the new 1..

is there anyway to delete and insert in a single hit ( command ) ??

Delete all unwanted email ids' but one. Replace the last one with the new entry.

Dear Anchal,

try this

echo $MailRecipients|sed "s/a.s@l.com//g" |sed "s/r.a@l.com/s.p@l.com/g"

regards,
Pankaj