I have 20000 files they are html and PHP

[mfaridi]

I have over 20000 files , all of them are HTML and PHP , I have this word in many of them
"mfaridi.com" and I do not know how many of them
I want change "mfaridi.com" to "mfaridi.org"
How I can do this with shell and script

I want find all of "mfaridi.com" and change them to "mfaridi.org" in 20000 files

[vermaden]

something like:
# find /dir/with/your/files -type f -exec sed -i s/mfaridi.com/mfaridi.org/g {} ';'

[plamaiziere]

I have over 20000 files , all of them are HTML and PHP , I have this word in many of them
"mfaridi.com" and I do not know how many of them
I want change "mfaridi.com" to "mfaridi.org"
How I can do this with shell and script

I want find all of "mfaridi.com" and change them to "mfaridi.org" in 20000 files

sed(1) is your friend.