GREP only if whole string-CodePudding

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GREP only if whole string

Time：12-02

Here is the list.txt file:

001 Linux000

002 Linux001

003 Linux002

cat list.txt | grep 002 returns:

002 Linux001

003 Linux002

But I need to get only lines where is 002, not Linux002.

002 Linux001

CodePudding user response：

Taking word boundaries (\b) into account with GNU grep:

grep '\b002\b' list.txt

CodePudding user response：

Does this grep work?

$ grep '\<002\>' input_file
002 Linux001