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Shell Programming and Scripting

Selective grep

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# 1  
Old 05-18-2012
Selective grep
I have to grep out only email address from a column. It has characters appended and prepended

Code:
 F=<sss1@domain.com>
 <sss2@domain.com>
(sss3@domain.com)
 <sss4@domain.com>

Whatever added before and after email, I should be able to grep out only emails.
# 2  
Old 05-18-2012
Hi


Code:
$ grep -o '[[:alnum:]]*@[[:alpha:]]*\.com' file
sss1@domain.com
sss2@domain.com
sss3@domain.com
sss4@domain.com

Guru.
This User Gave Thanks to guruprasadpr For This Post:
anil510
# 3  
Old 05-18-2012
Thank you guruprasadpr,

If there are mixed tlds, like .com, .net, .co.in, .in etc..
# 4  
Old 05-18-2012
A slight extension to guruprasadpr's solution:

Code:
grep -Eo '[[:alnum:]]*@[[:alpha:]]*(\.[a-z]{2,4})+' file

# 5  
Old 05-18-2012
Code:
 
$ nawk -F"[<>()]" '{print $2}' test.txt
sss1@domain.com
sss2@domain.com
sss3@domain.com
sss4@domain.com

# 6  
Old 05-18-2012
Code:
sed 's/.*[<(]\([^>)]*\)[>)]/\1/g' infile

# 7  
Old 05-18-2012
Quote:
Originally Posted by balajesuri
A slight extension to guruprasadpr's solution:

Code:
grep -Eo '[[:alnum:]]*@[[:alpha:]]*(\.[a-z]{2,4})+' file

Code:
# cat  /root/gmail.txt
now_u.k12@gmail.com
c.gg@gmail.com
s_klk@gmail.com

When _ or . character is in email, it gives wrong result.
Code:
# cat /root/gmail.txt   |  grep -o '[[:alnum:]]*@gmail.com' |sort|uniq -c|sort -nk 1
      1 gg@gmail.com
      1 k12@gmail.com
      1 klk@gmail.com

How to solve this?
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