Linux + Find Word in File Under Directory But Quickly

Linux : Search for a Particular word in a List of files under a directory

grep is made for this.

Use:

grep myword * for a simple word
grep 'my sentence' * for a literal string
grep "I am ${USER}" * when you need variable replacement

You can also use regular expressions.

Add -r for recursive and -n to show the line number of matching lines.

And check man grep.

linux + find word in file under directory but quickly

grep -r "string"

The find is not neccesary.

This is a good link, though outdated.

link text

Also i think this belongs in superuser.com

How to find all files containing specific text (string) on Linux?

Do the following:

grep -rnw '/path/to/somewhere/' -e 'pattern'

-r or -R is recursive,
-n is line number, and
-w stands for match the whole word.
-l (lower-case L) can be added to just give the file name of matching files.
-e is the pattern used during the search

Along with these, --exclude, --include, --exclude-dir flags could be used for efficient searching:

This will only search through those files which have .c or .h extensions:
```
grep --include=\*.{c,h} -rnw '/path/to/somewhere/' -e "pattern"
```
This will exclude searching all the files ending with .o extension:
```
grep --exclude=\*.o -rnw '/path/to/somewhere/' -e "pattern"
```
For directories it's possible to exclude one or more directories using the --exclude-dir parameter. For example, this will exclude the dirs dir1/, dir2/ and all of them matching *.dst/:
```
grep --exclude-dir={dir1,dir2,*.dst} -rnw '/path/to/search/' -e "pattern"
```

This works very well for me, to achieve almost the same purpose like yours.

For more options, see man grep.

Fast search for text in files in a directory in unix?

This might be overkill for your purposes, but Beagle allows you to perform very fast searches of local files. It's usually marketed as a desktop application, but in fact it is just a daemon that can respond to requests from the command-line using beagle-query.

How can I use grep to find a word inside a folder?

grep -nr 'yourString*' .

The dot at the end searches the current directory. Meaning for each parameter:

-n            Show relative line number in the file
'yourString*' String for search, followed by a wildcard character
-r            Recursively search subdirectories listed
.             Directory for search (current directory)

grep -nr 'MobileAppSer*' . (Would find MobileAppServlet.java or MobileAppServlet.class or MobileAppServlet.txt; 'MobileAppASer*.*' is another way to do the same thing.)

To check more parameters use man grep command.

How to search for a text in specific files in unix

It might be better to use find, since grep's include/exclude can get a bit confusing:

find -type f -name "*.xml" -exec grep -l 'hello' {} +

This looks for files whose name finishes with .xml and performs a grep 'hello' on them. With -l (L) we make the file name to be printed, without the matched line.

Explanation

find -type f this finds files in the given directory structure.
-name "*.xml" selects those files whose name finishes with .xml.
-exec execute a command on every result of the find command.
-exec grep -l 'hello' {} + execute grep -l 'hello' on the given file. With {} + we are refering to the matched name (it is like doing grep 'hello' file but refering to the name of the file provided by the find command). Also, grep -l (L) returns the file name, not the match itself.

Find all files with name containing string

Use find:

find . -maxdepth 1 -name "*string*" -print

It will find all files in the current directory (delete maxdepth 1 if you want it recursive) containing "string" and will print it on the screen.

If you want to avoid file containing ':', you can type:

find . -maxdepth 1 -name "*string*" ! -name "*:*" -print

If you want to use grep (but I think it's not necessary as far as you don't want to check file content) you can use:

ls | grep touch

But, I repeat, find is a better and cleaner solution for your task.