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Old 11-13-2009, 09:16 AM   #1
tebucky
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Replacing everything before the @ symbol


Hello all,

I have a list of email address's that I need to sift through to identify only the domain name.

xyz@yo.com
abs@yo.com
clahclah@test.com

I want to remove everything before the @ symbol and only print the domain name. Can anyone assist with this?
 
Old 11-13-2009, 09:25 AM   #2
Guttorm
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cut -d@ -f2 emails.txt
 
Old 11-13-2009, 09:26 AM   #3
ghostdog74
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try posting what you have tried next time.
Code:
awk -F"@" '{print $2}' file
 
Old 11-13-2009, 09:26 AM   #4
pixellany
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Code:
sed 's/^.*@//' filename > newfilename
If you want to keep the "@", put it between the last two slashes
 
Old 11-13-2009, 09:29 AM   #5
pixellany
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Q: Which is better--SED or AWK?

A: cut (at least it's the most readable.)

 
Old 11-13-2009, 09:48 AM   #6
ghostdog74
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Quote:
Originally Posted by pixellany View Post
A: cut (at least it's the most readable.)
readable because it appears "shorter"? which is more understandable, print $2 or -f2 ?
 
Old 11-13-2009, 09:53 AM   #7
pixellany
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"print $2" just sounds like you are a counterfeiter, whereas -f2 OBVIOUSLY means the second field.....

Sorry, I know AWK is better...........

Actually, in the example, "cut" is confusing---it does not remove the specified data. Perhaps the command should be renamed "keep"

Last edited by pixellany; 11-13-2009 at 09:55 AM.
 
Old 11-13-2009, 10:14 AM   #8
ghostdog74
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Quote:
Originally Posted by pixellany View Post
whereas -f2 OBVIOUSLY means the second field.....
only after reading cut's man page.

Quote:
Sorry, I know AWK is better...........
of course. cut is just cut and nothing more. awk is cut and a whole lot more

Quote:
Actually, in the example, "cut" is confusing---it does not remove the specified data. Perhaps the command should be renamed "keep"
what do you mean? it does the job. only data left is the domains.
 
Old 11-13-2009, 10:27 AM   #9
tebucky
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Thanks to you all for your help!
 
  


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