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Replacing System.out.println with Logger.println in *.java using SED (spanned over multiple lines)

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# 1  
Old 08-10-2012
MySQL Replacing System.out.println with Logger.println in *.java using SED (spanned over multiple lines)
Hi,

Can anyone help me out for my below problem.

I need to replace all System.out.println with Logger.println in *.java using SED (spanning multiple lines)
including current & sub-directories.

I tried with below command. But it is not replacing when source text is spanned over multiple lines.

Code:
 find -name '*.java' -print -exec sed -i.bak 's/System.*println/Logger.println/g' {} \;

Code:
System.out.println
System . out . println

It is able to replace above two statements. But below statement is not able to.

Code:
System    .
out
. 
println

Also the command needs to be displayed only the list of files which were replaced.

Thanks in advance.
Last edited by Scott; 08-13-2012 at 03:25 AM.. Reason: Code tags
# 2  
Old 08-11-2012
Let me know if the following command does the replacement job for you:
Code:
sed ':strt
s/System[[:space:]]*\.[[:space:]]*out[[:space:]]*\.[[:space:]]*println/Logger.println/g
/System[[:space:].]*\(out\)*[[:space:].]*\(println\)*[[:space:]]*$/ {
N
b strt
}' infile

Last edited by elixir_sinari; 08-11-2012 at 08:13 AM..
# 3  
Old 08-13-2012
Thanks for your reply.

After running the command, it displays the below message.

Code:
 sed: -e expression #1, char 169: extra characters after command

can you please recheck it.
Last edited by Scott; 08-13-2012 at 03:25 AM.. Reason: Code tags
# 4  
Old 08-13-2012
Can you post the exact command you typed in? Most probably you've put everything on one line without using semicolons.
That aside, I never post some solution without verifying that it really does the job (at least on systems available to me at that moment).
Last edited by elixir_sinari; 08-13-2012 at 03:58 AM..
This User Gave Thanks to elixir_sinari For This Post:
Bhanu Dhulipudi
# 5  
Old 08-13-2012
Thanks elixir.

I have run the command as below.

Code:
  
sed -i.bak ':strt;
s/System[[:space:]]*\.[[:space:]]*out[[:space:]]*\.[[:space:]]*println/Logger.println/g;
/System[[:space:].]*\(out\)*[[:space:].]*\(println\)*[[:space:]]*$/ {;
N;
b strt;
}' *.java;

Now it is able to replace all kind of statements (System.out.println) in *.java in the current directory only.

How can i make it work for all sub-directories as well?
Also it should display the list of all replaced files (with complete directory structure) for my further processing.

Assume, my directory structure looks like the following:

a
|
- I.java
- X.java
- b
|
- J.java
- Y.java
- c
|
- K.java
- Z.java

I am running the command from 'a' directory.
Last edited by Bhanu Dhulipudi; 08-13-2012 at 09:40 AM..
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