grep problem


 
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# 1  
Old 06-05-2008
Error grep problem

Example:

bashSmiliewd
/home/balamv


bash:more test.txt
hello
hello-ssl
welcome
welcome-ssl
hi
bye
bye-ssl
seeyou

I want to get all the lines which contain ssl and also the one does not contain ssl.

Output should be like this.


hello-ssl
welcome-ssl
hi
bye-ssl
seeyou


Note if a line [ex. hello] has the ssl line, then get only ssl.

How to achieve this?
# 2  
Old 06-05-2008
It's not really a grep problem, per se.

Code:
sed -n 's/-ssl$//p' test.txt | fgrep -vxf - test.txt

This finds all the -ssl lines, and removes the -ssl suffix, then removes any lines matching any of these lines (-ssl lines with the -ssl suffix removed) from the original file.
# 3  
Old 06-05-2008
No. THIS IS NOT GIVING THE OUTPUT AS EXPECTED.
hello-ssl
welcome-ssl
hi
bye-ssl
seeyou
# 4  
Old 06-05-2008
No need to shout.
What output did you get?

The only possible problem I see with eras solution is if there is extra space after the "-ssl", but a slight modification fixes that:
Code:
sed -n 's/-ssl\s*$//p' test.txt | fgrep -vxf - test.txt

# 5  
Old 06-05-2008
\s is not a standard sed expression; you could use space and tab inside [ ] brackets instead. But I don't see any trailing spaces in the original example. If there are significant spaces, please use code tags when posting a sample.
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