rename

para testar:
rename 's/.conf.bloqueado$/.conf/' *.conf.bloqueado -vn

-v means "verbose" and it will output the names of the files when it renames them.

-n will do a test run where it won't rename any files, But will show you a list of files that would be renamed.

https://askubuntu.com/questions/140544/is-there-a-way-to-quickly-change…

for FILENAME in *.conf; do mv $FILENAME antigo_$FILENAME; done

http://stackoverflow.com/questions/6329505/how-to-rename-all-file-in-a-…