rename multiple files in linux with number plus a constant

Question

I want to rename all the files in a folder with numbers in their names, like

Solution_01.vtu
Solution_02.vtu
Solution_03.vtu ...

to be

Solution_201.vtu
Solution_202.vtu
Solution_203.vtu ...

where the additional constant (here 200) can be specified.

I've tried something along the lines of that suggested in Renaming a set of files to 001, 002, ... on Linux

i=200; temp=$(mktemp -p .); for file in solution_*.vtu 
do 
mv "$file" $temp; 
mv $temp $(printf "solution_%0.3d.vtu" $i) 
i = $((i+1)) 
done

but this doesn't work for me. Thanks for any help!

Share some code you tried at this point, and explain on what you are stuck because we will not do the whole script for you — β.εηοιτ.βε, Feb 10 '15 at 10:39

score 0 · Answer 1 · answered Feb 10 '15 at 11:51

0

You can try with this command:

 find . -printf 'mv %f %f\n' | grep -v '\. \.' | sed 's/u Solution_/u Solution_2/g' | while read -r i ; do $i ; done

answered Feb 10 '15 at 11:51

lpg

4,897
1
16
16

Thank you for your reply, but this isn't quite what I was looking for as this just appends an extra 2. I.e. if I have Solution_200.vtu Solution_201.vtu I will get Solution_2200.vtu Solution_2201.vtu instead of Solution_400.vtu, Solution_401.vtu which is what I really need. – Littlemouse Feb 10 '15 at 11:58

score 0 · Answer 2 · answered Nov 08 '16 at 21:32

If you have ruby on your Linux machine :

#! /usr/bin/env ruby

require 'fileutils'

pattern = ARGV[0] || "*.vtu"
offset  = (ARGV[1] || 200).to_i

Dir[pattern].each do |file|
  id = file[/\d+/]
  if id then
    new_id = id.to_i + offset
    new_file = file.sub(/\d+/, new_id.to_s)
    puts "#{file} -> #{new_file}"
    ## UNCOMMENT THIS LINE IF YOU WANT TO MOVE FILES:
    # FileUtils.mv file, new_file
  end
end

You can use it like this :

./rename_with_integer_offset.rb "*.vtu" 200
# solution_201.vtu -> solution_401.vtu
# solution_202.vtu -> solution_402.vtu

rename multiple files in linux with number plus a constant

2 Answers2