You can add the -l option to print just the file name but this still prints the names of any file which contains any line which does not contain the pattern.
In some cases you may want to exclude certain directories from your search. This prints the lines which do not contain the pattern. r: search all files under directory, recursively. i: to ignore case distinctions in both the pattern and the input files. l: to make this scanning will stop on the first match. Modifiers to the grep command across multiple files grep exclude directories Basically, to find all files including a particular string in a directory, you can use: grep -lir 'pattern' /path/to/the/dir. You may also specify the directory path if you are not in the directory where you want to perform the search: grep -r searchterm directorypath That was a quick recap. 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). You can make grep search in all the files and all the subdirectories of the current directory using the -r recursive search option: grep -r searchterm. This is not recommended as you would get the results from folders that aren’t relevant to your search, such as your configuration settings.
To search all files, you can run the commands identified above but from the root of your system.
#LINUX GREP SEARCH ALL FILES IN DIRECTORY HOW TO#
Here's the command in action: How to make grep display only those lines that completely match the search. So to meet your precise requirements here is my submission: This displays the file names: grep -lR hello egrep '(cch)'. Interestingly, POSIX grep is not required to support -r (or -R), but I'm practically certain that System V grep did, so in practice they (almost) all do. If I read your question carefully, you ask to 'grep to search the current directory for any and all files containing the string 'hello' and display only. txt files in the current directory for words 'how' and 'to', but want to supply these input strings through a file named, say, 'input,' then here's how you can do this: grep -f input. grep -r -e string directory -r is for recursive -e is optional but its argument specifies the regex to search for. 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. For example, suppose you want to search all the. Which searchers all files in the current directory with the given file extension. The first method is to navigate to the directory using the cd command and then using the sign to search through all the files.
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