11 Advanced Linux ‘Grep’ Commands on Character Classes and Bracket Expressions

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3 Responses

  1. vinay singh says:

    grep "^[[:punct:]]" tecmint.txt for Search Punctuation Characters is not working then I tried to grep -c “(” it works but didn’t solve my problem

  2. Jonix says:

    When doing search with xdigit it should be within range 0-9 and A-F and a-f only.

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