grep recursively for a specific file type on Linux

Question

Can we search a term (eg. \"onblur\") recursively in some folders only in specific files (html files)?

grep -Rin \"onblur\" *.html

This ret

Answer 1

grep -r --include "*.html"  onblur .

Got it from : How do I grep recursively?

Answer 2

Consider checking this answer and that one.

Also this might help you: grep certain file types recursively | commandlinefu.com.

The command is:

grep -r --include="*.[ch]" pattern .

And in your case it is:

grep -r --include="*.html" "onblur" .

Answer 3

You might also like ag 'the silver searcher' -

ag --html onblur

it searches by regexp and is recursive in the current directory by default, and has predefined sets of extensions to search - in this case --html maps to .htm, .html, .shtml, .xhtml. Also ignores binary files, prints filenames, line numbers, and colorizes output by default.

Some options -

-Q --literal
          Do not parse PATTERN as a regular expression. Try to match it literally.
-S --smart-case
          Match case-sensitively if there are any uppercase letters in PATTERN, 
          case-insensitively otherwise. Enabled by default.
-t --all-text
          Search all text files. This doesn't include hidden files.
   --hidden
          Search hidden files. This option obeys ignored files.

For the list of supported filetypes run ag --list-file-types.

The only thing it seems to lack is being able to specify a filetype with an extension, in which case you need to fall back on grep with --include.

Answer 4

Have a look at this answer instead, to a similar question: grep, but only certain file extensions

This worked for me. In your case just type the following:

grep -inr "onblur" --include \*.html ./

consider that

• grep: command

• -r: recursively

• -i: ignore-case

• -n: each output line is preceded by its relative line number in the file

• --include \*.html: escape with \ just in case you have a directory with asterisks in the filenames

• ./: start at current directory.