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Grep multiple lines

 
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# 1  
Old 10-13-2011
Grep multiple lines
I want to grep multiple lines from a text file. I want to grep all lines containing X,Y and NA in a single command. How do I go about doing that?

This is what my text files look like:

Code:
rs1983866 0.0983 10 100016313
rs1983865 0.5994 X 100016339
rs1983864 0.3272 11 100017453
rs7077266 0.0373 Y 100019039
rs11189526 0.9483 10 100020572
rs735116 0.6413 NA 100021533

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Last edited by vbe; 10-13-2011 at 03:13 PM..
# 2  
Old 10-13-2011
if you have egrep:
Code:
egrep "X|Y|NA" < file

# 3  
Old 10-18-2011
Code:
awk '$3~/X|Y|NA/' infile

 
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