Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

Say, I have many documents in my computer and I just want to find one document which contains some specific word(s) in it. I can't even remember the type or name of the document.

I tried to achieve this with Unity (Documents & folders) lenses, but it seems Ubuntu only looking for the names (of files and folders) but not looking inside of the documents.

Please advise whether I can achieve my goal using Ubuntu or not.

share|improve this question
1  
I don't know about a Unity lens, but it would be fairly easy to write a script to do this, but it would potentially take a long time to run--as it would be opening every file and scanning word by word. Useful for finding one file you lost but not very practical for daily use. –  adempewolff Jun 2 '12 at 7:13
    
very much time and resource consuming. It needs to index all files on Hard Drive. –  virpara Jun 2 '12 at 9:15
add comment

2 Answers

up vote 2 down vote accepted

I recommend to install and use Recoll Lens:

Recoll is a full text search desktop tool which indexes the contents of many file formats including OpenOffice, MS Office, PostScript, MP3 and other audio files, JPEG and more. Besides regular searches, Recoll also lets you perform some advanced operations like searching for the author, file size, file format as well as operators like "AND" or "OR".

Unity Recoll Lens lets you use Recoll from Dash, without having to open any additional GUI. The lens comes with a few filters like Text, Spreadsheet, Presentation, Media or Message, but for more advanced searches, you'll have to manually enter the Recoll search query. Examples: author:"john doe" metallica OR megadeth /2007 (all documents from 2007 or older) dir:/path/to/dir (filters content from /path/to/dir directory).

share|improve this answer
    
Why this is not made available in Ubuntu software centre? –  DUKE Jun 2 '12 at 11:16
add comment

If the text is stored as plain text inside the document file (whether or not the file itself is composed entirely of plain text), then you can search for it from the command-line with a recursive grep. This doesn't require indexing first, but searching through all your files takes a very long time so if you ever have to do this more than a couple of times for your whole disk, you should use an indexing search utility instead (like in this answer).

  1. Open a Terminal window (Ctrl+Alt+T).

  2. Change directory to the top of whatever you want to search. For example, to search everything in your home directory, do cd ~. To search everything on your machine, do cd /. To search everything in an external drive called DocDrive do cd /media/DocDrive. If a directory has spaces in its name, enclose it in quotes (e.g., cd '/media/Documents Drive'.

  3. Run a recursive grep as follows:

    grep -Rs 'word or phrase you are looking for' .

Alternatively, you can skip step 2 and, instead of cding to the folder you want to look inside, replace the . in step 3 with the name of the folder you want to look inside.

If you want to search through all files including those you don't ordinarily have access to, you can run grep as root with sudo:

sudo grep -Rs 'word or phrase you are looking for' .
share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.