Question

I have a folder with a couple thousand files and I want to move them into subfolders according to a string in the filename. The files all have a structure like

something-run1_001.txt

something-run22_1243.txt

So I tried the following script in order to move all files with “run1” in it into a subfolder r1 and all “run22” files in a subfolder r22 (and so on) but it does no work that way and I get a message “File X is the same as file X”.

#!bin/bash

for i in {1..39}
do
foldername=r$i
#echo "$foldername"
mkdir $foldername
find . -type f -name "*run$i_*" | xargs -i mv {} $foldername/ 
done

How to solve this?

Answer 1

for i in {1..39}
do
  mkdir -p r${i}/
  mv *run${i}_* r${i}/
done