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#1
Member
Registered: Mar 2004
Posts: 89
Rep:
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?
#2
Member
Registered: Dec 2003
Location: Trondheim, Norway
Distribution: Debian and Ubuntu
Posts: 938
Rep:
cut -d@ -f2 emails.txt
#3
Senior Member
Registered: Aug 2006
Posts: 2,695
try posting what you have tried next time.
Code:
awk -F"@" '{print $2}' file
#4
Guru
Registered: Nov 2005
Location: Pasadena, CA
Distribution: Arch+KDE
Posts: 16,552
Code:
sed 's/^.*@//' filename > newfilename
If you want to keep the "@", put it between the last two slashes
#5
Guru
Registered: Nov 2005
Location: Pasadena, CA
Distribution: Arch+KDE
Posts: 16,552
Q: Which is better--SED or AWK?
A: cut (at least it's the most readable.)
#6
Senior Member
Registered: Aug 2006
Posts: 2,695
Quote:
Originally Posted by
pixellany
A: cut (at least it's the most readable.)
readable because it appears "shorter"? which is more understandable, print $2 or -f2 ?
#7
Guru
Registered: Nov 2005
Location: Pasadena, CA
Distribution: Arch+KDE
Posts: 16,552
"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 .
#8
Senior Member
Registered: Aug 2006
Posts: 2,695
Quote:
Originally Posted by
pixellany
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.
#9
Member
Registered: Mar 2004
Posts: 89
Original Poster
Rep:
Thanks to you all for your help!
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