Hi Stuart, Thanks for your reply. I will explain my choise. There are some differences between rename and re-name.
Firstly, re-name is C compiled and it adds performance. I used re-name in the last year to rename about ~300 milions of files on four servers. It was made several times. I tested others programs before to use re-name. A little comparative test (Intel Core i5-2400 CPU @ 3.10GHz / 8 GB RAM): # cd /tmp/1 # for i in $(seq 1 200000); do touch $i; done # cd /tmp; cp -a 1 2 On /tmp/1 (prename): time rename 's/2/C/' * real 0m24.278s user 0m3.596s sys 0m1.308s # time rename 's/3/d/' * real 0m22.813s user 0m3.488s sys 0m1.380s # time rename 's/4/e/' * real 0m23.547s user 0m3.640s sys 0m1.364s On /tmp/2 (re-name): # time re-name -s'/2/C/' * 81903 files renamed. real 0m17.733s user 0m0.668s sys 0m1.448s # time re-name -s'/3/d/' * 81902 files renamed. real 0m16.504s user 0m0.624s sys 0m1.418s # time re-name -s'/4/e/' * 81902 files renamed. real 0m17.238s user 0m0.596s sys 0m1.500s The re-name was 27% faster than rename. In milions of files, it makes a difference. re-name has others features not available in rename. re-name can be recursive and read filenames from a file too. I used recursively in my case. The options are (extracted from manpage): -l, --lowercase Lowercase specified filenames. -u, --uppercase Uppercase specified filenames. -R, --recursive Perform on the specified files and all subdirectories. -t, --test Test only mode. It won't change anything, just test the result of searching and substituting. -f, --file Load file names from the specified files. -o, --owner OWNER Change the ownership of the specified files to OWNER. (superuser only) -v, --verbose verbose display. -A, --always Always overwrite the existed files -N, --never Never overwrite the existed files, discard the renaming process instead Thanks a lot again. Best regards, Eriberto 2013/4/23 Stuart Prescott <stu...@debian.org>: > Perhaps you could compare it to the tool prename(1) (which is usually also > /usr/bin/rename on Debian systems) and is part of the perl package hence > widely installed. It's important for potential sponsors and reviewers to > understand what each new package brings to Debian compared to the ones that > are already available. -- To UNSUBSCRIBE, email to debian-mentors-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAP+dXJfZymne3-q12JStqG7XkKyffchVrsGC=q5bsecq2l_...@mail.gmail.com