grep single quotes or double quotes


 
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# 1  
Old 10-27-2010
grep single quotes or double quotes

Unix superusers,

I am new to unix but would like to learn more about grep. I am very familiar with regular expressions as i have used them for searching text files in windows based text editors. Since I am not very familiar with Unix, I dont understand when one should use GREP with the regular expression pattern with doublequotes versus single quotes.

Can someone tell me the difference when using GREP with single or double quotes?

grep "^asdf" /testdirectory/testfile.txt

grep '^asdf' /testdirectory/testfile.txt

Thanks,

George
# 2  
Old 10-27-2010
There is no difference at all in the given example.

More importantly, you may want to read something about UNIX Shell Quotes
This User Gave Thanks to verdepollo For This Post:
# 3  
Old 10-27-2010
thanks. Ill give that a look!
 
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