I want rename bunch of filenames. The rename is based on the calculation of the filename. That means the actual filename + 3600 = new filename. Important is that the underscore in the pid files have to stay.
Thanks in advance!
My system is Debian Stretch.
Actual Filename:
134235.error
134235_.pid
134235.tiff
13893.error
13893_.pid
13893.tiff
1.error
1_.pid
1.tiff
Rename to:
137835.error
137835_.pid
137835.tiff
17493.error
17493_.pid
17493.tiff
3601.error
3601_.pid
3601.tiff
With Perl's standalone rename command. Some distributions call it prename.
rename -n 's/(\d+)(.+)/${\($1+3600)}$2/' *
If everything looks fine, remove -n.