This is tough, Uhhh, who can help me?!

There is a directory tree and I want to change the ".exe" token of all files into ".g43". How can I implement this???


Thanks!!!

ls -lR *.exe | while read line do
length=`expr length $line`
path=`expr substr $line 1 $length-4`
rename $line ${path}.g43
done

Ofcourse it is not debuged and there can be better ways too... Try taking the substr of the file's path without ".exe". Then rename or move it with required extension. ls -lR will display full path names. check substr starting position is 1 not 0.

Gentoo

Something like this should do the work:

If you are using the Perl version of rename (the one found here), you can also do this (it has fewer forks):

Thanks a lot !
But I can't use rename, because I want to change the exe tokens INSIDE the file into g43, not rename the file....

I can use this script
find . -name "*.sh" then using sed -e 's/.exe/.g43/g'

however, how can I pipe? I mean replace the string without changing the file name?

thanks!

In this case you have to use sed, like this
Please note: in a regular expression the dot "." means any single character, so you have to let sed interpret it literally using the square brackets. Otherwise any occurence of the string "exe" preceeded by any character will be substituted.

Test the command above on a single file without the -i option (output is displayed in the terminal). When you are sure of the result, add the -i option to edit files in place. To do this recursively use the find command, like this:
Here I used -type f to select files only, but you can refine the search criteria if you want to do this to some specific files only. Take in mind that sed will substitute strings even in binary files.

similar codes:
where 'maxdepth -1' is only optional. do 'man find' for more info.