Shell Programming and Scripting

I have folders like as below format. I need to apply the 755 mode for '.sh' format only. I am using the below command to apply the changes. But it's affecting first level only. How to apply the changes recursively in .sh file only?

Please suggest the command.
Thanks

Code:

 
chmod 755 -R *.sh

Code:

 
root_folder/A/
 one.sh
 one.txt
 
root_folder/A/A1
 one.sh
 one.txt
 
root_folder/A/A1/A2
 one.sh
 one.txt

Code:

find DIR -name '*.sh' | xargs chmod 755

Suppose if ‘root_folder/A/A1/A2' folder doesn't have the *.sh file.
I got the chmod utility usage in console, that's affect, my script.
How to avoid this error even if *.sh file doesn't having the folder.
I wish to execute the chmod command when *.sh file exists the path.

Thanks,

I note a lot of people use xargs (quite useful)... however, the find command has a -exec option which seems to not be very popular (I use it all the time )

Code:

find DIR -name '*.sh' -exec chmod 755 {} \;

Food for thought.

Say if there are 10 .sh files under the directory DIR, the above find command will be executed 10 times in total and gives the output to chmod command each time its executed. Whereas if we use xargs along with find, the find command is executed only once ,outputs the 10 files names to xargs and xargs takes the job of appending the file to chmod. So we save the number of processes run thereby reducing the execution time. If we have many number of files under a directory then xargs would be a better option.

I'm not convinced that in today's world of fast CPU's that this is overly important, but I do concede the point with respect to the total number of processes. The main advantage of using the -exec option is that I never have to remember to include the -print0 and -0 options to handle files with white spaces in the name...

To each his own I guess.

It is. The more and more CPU speed we have, the more and more wasteful programmers get, so it about balances out. If you can write just a little better, you can get really big gains.