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I want whole line which contains "sasl_username=name@xyz.com". Where name can be anything ie any name on the planet. And I think the above command is doing that thing. What do you say?

Thanks. My requirement is half solved from your all help. I will return soon with my next queries of second stage related to my program.

Forum rocks !!!!!

I found the solution of my own question...

awk '/sasl_username=/ && /xyz.com/' maillog.txt


This line contains queue id in the 6th field. I am trying to have that value like

awk...

First thanx for the reply. I think I was not clear in my question. There will be n number of lines besides

Dec 12 03:15:28 postfix/smtpd[550]: 3F481EB0295: client=unknown[x.x.x.x],...

I have a mail log file and I want to extract some lines belonging to one domain. For example

Input File:


Dec 12 03:15:28 postfix/smtpd[550]: 3F481EB0295: client=unknown[x.x.x.x],...

bijayant@bijayant ~ $ cat test
hi this is bijayant 17
Received message 17
17 Received message
18 Received message
19 Received message
Bijayant Received message
Bijayant 17 Received message
17...

And if you need output to the file at the same time then
grep -l 'pattern to match goes here' /var/allogs/*.log | tee output.txt

Oopss...sorry,sorry such a silly typo

It will be
bijayant@bijayant ~ $ grep -o mad test | echo "be mad"
be mad

bijayant@bijayant ~ $ cat test
main string is madhu

bijayant@bijayant ~ $ grep -o mad test2 | echo "be mad"
be mad

This code should be like this

cat test |sed -e 's/^.*+//g'|tr -d "\t"

It will take care any number of "tabs" or "spaces" present before the "+" sign. No matter its a "space or tabs". It will...

First of all, i am sorry to say that i didnt understood ur problem , but whatever i understood

cat test
+ T 40

cat test | tr -d " " | sed -e 's/^./ /g;s/\( \)\(.\)/\1\2 /'
T 40

echo 'AAAACCCCBBBB.txt' | sed 's/^.*\(...\)\..*/\1/'
sed 's/^.*\(...\) --> you understood till this part right??

\..* --> this is string after the ".". In this case anything after dot ( . )...

May be this can help you a little bit

bijayant@bijayant~ $ cat testfile
new 1: insert into sapr3.sdbah values ('20080927210501','net','DB','0','20080928084821','netbackup')

bijayant@bijayant...

Ohh cool.... then it is much easier now.. i was not aware of this.. thanks

Now the command will look like
awk -F: -v user="$name" '$1 == user{print $1":*RM*" $2 ":" $3 ":" $4 ":" $5 ":" $6 ":" $7...

1. For this you need to grep first that user name then pipe it to awk command.
or you can try this command also
grep "$name" /etc/shadow | sed...

Every day at 6 am.
see man crontab

If you will replace comma(,) with newline then you can use awk to get number of occurrence of 'abc' like this :-

cat testfile | tr "," "\n" | awk /abc/ | wc -l

sed 's/,/\n/g' testfile | awk...

You can try in this way also, if you dont want that '>' and '<' in the lines

1. sdiff file1 file2 | tr -s ' <' '\t' | tr -s ' >' '\t'
and
2. sdiff file1 file2 | sed -e's/ <//g;s/\t/ /g;s/ >/\t/g'

You can try this also

grep -lr '^A$' ../ | xargs ls -l | awk '{print$1 " " $9}'