![]() grep - Search file(s) for specific text.find - Search a folder hierarchy for filename(s) that meet a desired criteria: Name, Size, File Type.An A-Z Index of the Bash command line for Linux - An excellent reference for all things Bash command line related.The following command works on Cygwin: grep -exclude-dir=* "foo". pipes |, or xargs as suggested in another answer. Grep therefore doesn't find a match so has nothing to output. ![]() When that list of filenames is passed to grep using the pipe operator grep will see the string bar (the filename) and not foo (the contents of file bar). It doesn't return the contents of the matching files. $.q.When I search for the source code with this command nothing shows up $ echo foo > barįind searches for filenames that meet a desired criteria: Name, Size, File Type and returns a list of matching filenames. xxd -u /usr/bin/xxd | grep 'DF'Ġ0017b0: 4010 8D05 0DFF FF0A 0300 53E3 0610 A003 we use an ORed regexp to search for ' DF' OR 'DF ' (the searchTarget preceded or followed by a space char). Note that using a simple search target like 'DF' will incorrectly match characters that span across byte boundaries, i.e. (standard input):00017b0: 4010 8D05 0DFF FF0A 0300 53E3 0610 A003 found we could get usable results with xxd -u /usr/bin/xxd > /tmp/xxd.hex grep -H 'DF' /tmp/xxd (standard input):00017b0: 4010 8D05 0DFF FF0A 0300 53E3 0610 A003 tried several things before arriving at an acceptable solution: xxd -u /usr/bin/xxd | grep 'DF' Here are some of the things I've tried since posting this: xxd -u /usr/bin/xxd | grep 'DF'Ġ0017b0: 4010 8D05 0DFF FF0A 0300 53E3 0610 A003 grep -ibH "df" /usr/bin/xxd Nice output, just what I want to see, but it just doesn't work for me in this situation.Į. Using xxd -u /usr/bin/xxd as an example I get a output that would be useful, but I cannot use that for searching. Using grep -b option doesnt seem to work either, I did try all the flags that seemed useful to my situation, and nothing worked.ĭ. I CAN force it through hexdump or something of the link but because its a stream it will not give me the offsets and filename that it found a match in.Ĭ. ![]() Problem is, when I try to search for hex values, I get the problem of if just not searching for the hex values, so if I search for 00 I should get like a million hits, because thats always the blankspace, but instead its searching for 00 as text, so in hex, 3030.ī. Which is the pretty well standard output I would normally get with grep -URbFo. I am anticipating (and expecting) something along the lines of: : It's a little hard to explain the output I am getting since I really am not getting any output. Perl COULD be a option, but at this point, I would assume my lack of knowledge with bash and its tools is the main culprit. I am aware of the what it changes to, and I can do the same process and compare the lists to see which match. The patterns are not line-wrapping, as far as I am aware.The hex dumps are just complete binary files, the paterns are within float values at larges so 8? bytes?.I cannot get grep to do anything because I am looking for hex values so all the times I have tried (like a bazillion, roughly) it will not give me the correct output. ![]() o, -only-matching Print only the matched (non-empty) parts of a matching line, with each such part on a separate.
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