1/19/2024 0 Comments Grep directory names![]() In some cases you may want to exclude certain directories from your search. The grep command is mainly used to search in a particular file but the recursive grep is used to recursively search in multiple files of a directory. Modifiers to the grep command across multiple files grep exclude directories Instead, navigate to the root of where would be useful to search, such as /home or /usr or /etc and then run the grep command with the recursive search flag (-r). Read the filelist into an array and search by locate. ![]() This is not recommended as you would get the results from folders that aren’t relevant to your search, such as your configuration settings. In other implementations, basic regular expressions are ordinarily less powerful. In GNU grep, basic and extended regular expressions are merely different notations for the same pattern-matching functionality. ![]() To search all files, you can run the commands identified above but from the root of your system. grep understands three different versions of regular expression syntax: basic (BRE), extended (ERE) and perl (PCRE). cmevoli with this method, grep goes through all the files and sed only scans the files matched by grep.With the find method in the other answer, find first lists all files, and then sed will scan through all the files in that directory. Note that this could also be used to search all files with the same name but different extensions by changing where the wildcard character appears. Which searchers all files in the current directory with the given file extension.
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