find a word in the system

[juno2]

I want to find a word "hello" in my whole system , if i just use
# grep -i "hello" , it will only find the files in the specific system but not to each subdirectories , can suggest what can i do ? thx.

[juno2]

may be my question is not very clear,
I want to find the files that contains the word "hello" in my whole system ( include all sub-directories) , can suggest what can i do ? thx.

[twang · Accepted solution]

To grep in all files in subdirs:
grep */
or using find:
find . -type f -exec grep -i pattern {} \;

[Rajeev Shukla]

Hi Juno2,

Use the find option with..
find / -type f -exec grep -i hello {} \;

the left hand will list the files that have word hello.
Or redirect this to a fine and grep the first word like
awk -F ":" '{print &1}'

cheers
Rajeev

[Bruno Ganino]

The better command is (for me)
# cd
# find . -type f -exec grep -i {} \;

(where = path_of_whole_system and = word_by_search)

HTH
Bruno

[john korterman]

Hi,
find / -type f | xargs grep -i hello

regards,
John K.

[Bhuvaneswari Selvaraj]

cd /
find . -type f -exec grep -i "hello" {} \; -print 2>/dev/null

-print option is needed so that the file name in which the character is found is also printed.

In grep, include the -i option if you want to ignore case... Hello, hEllo and so on will also be searched for. If you want only hello then just give
cd /
find . -type f -exec grep "hello" {} \; -print 2>/dev/null

if your are not the root user, you will not have search permission on many dirs and hence will see lots of permission denied errors and so redirect the error 2>/dev/null will give you a clean output