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How to search a file with find and grep?
This post shows you how to use “find” and “grep” to search for a text string in all files that are directly or indirectly contained in a given directory. Example: Find all JavaScript files in the current directory and search for the word “foo”. The easiest way to do this is to execute the command grep -iH foo `find. -name “*.js”`
Which is the latest way to use grep?
The latest way to use grep is with the -E option. This option treats the pattern you used as an extended regular expression. grep -E ‘pattern1|pattern2’ fileName_or_filePath The deprecated version of extended grep is egrep.
How can I use grep for multiple strings?
For example, to show the count of multiple matches in the bootstrap.log file, enter: The output prints the number of matches. This way, you can quickly determine if the number of warnings and errors increased. You can use grep to search multiple strings in a certain type of file only.
Where can I find the output of grep?
The output will return results from all files the grep command found in the /var/log/ directory and its subdirectories. In this tutorial, you learned how to use grep to search multiple words or string patterns in a file.
What is the name of the argument in grep?
The grep argument -H outputs the name of the file, if that’s of interest. If not, you can safely remove it and simply use grep.
Which is better for search, grep or ACK?
If this is going to be a common search utility you’re going to utilize, you may want to take a look at ack, which combines both the find and the grep together into this functionality that you’re looking for. It has fewer features than grep, though 99% of my searches are suited perfectly by replacing all instances of grep with ack.
Is there a way to remove the string from grep?
If not, you can safely remove it and simply use grep. This will instruct find to execute grep string-to-find filename for each file name it finds, thus avoiding the possibility of the list of arguments being too long, and the need for find to finish executing before it can pass its results to xargs.