grep -a will force grep to search and output from a file that grep thinks is binary. grep -a re test.log Share Improve this answer Follow answered Feb 16, 2017 at 20:27 Kevin Buchs 2,80055 gold badges4242 silver badges6161 bronze badges Add a comment 3 As James Selvakumar a...
Well.. indeed Perl is very nice 'binary grepping' facility, I must admit :) As long as one learns the syntax properly :) linux binary grep This seems to work for me: grep --only-matching --byte-offset --binary --text --perl-regexp "<\x-hex pattern>" <file> Short form: grep ...
Binary file nul.txt matchesCopy We can see that also in this case,grepthinks this is a binary file instead of just a plain text file with a NUL byte. 3. ThegrepCommand with Binary Files When we try to find all files that contain a certain string value, it can be very costly to ch...
Binary file matches. This error is because grep thinks it is a binary file. But our log files are never a binary one. This error is due to the null value found in the log file. To read such files, you have to use -a which tell grep to read this file as a binary file. grep ...
You can usually view such files (for some value of “view”) with less -fr: -f forces less to open the file even if it thinks it’s a binary, and -r tells it to pass control characters to the display as-is. Another approach is to display them in the terminal, slowed down so ...
Anyway, most Linux distributors don't give a rat's bleep what the FSF thinks and patch GNU grep anyway. The Fedora Rawhide SRPM contains a patch called grep-2.5.3-egf-speedup.patch, which speeds up the UTF-8 performance of GNU grep by several orders of magnitude. (Since this patch is...