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grep for ^ as a single word

From: Szlovencsak Attila
Subject: grep for ^ as a single word
Date: Wed, 22 Mar 2006 16:43:11 +0100
User-agent: Mozilla Thunderbird 1.0.7-1.1.fc3 (X11/20050929)


I have a file like:
word1 ^ word2
word1 ^word2 word3
word1 word2^ word3

If I want to grep out all lines with a single '^' character as a word, I say

grep '\b\^\b' /tmp/test

but it does not give back the first two lines of the file, as expected.


grep '\B\^\B' /tmp/test

archive good results. The same thing happends if I use '$' instead of '^'.

Is it a bug of a ''feature''. I did not find any explanation of this on the web.

Thanks in advance,

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