How to select random files from a folder?

Question

linux

There is a folder with a million files in it. You need to select random from a folder of 100 thousand files and copy them to another folder.
Can you please tell me how it can be done in the terminal?

Answer 1

Like this

#!/bin/bash
if ! [ $3 ];then
  precent=6
else
  precent=$3
fi
ls $1 > ls.log
while read line
do
  [ $[ $RANDOM % $precent ] == 0 ] && cp -R $1/$line $2
done < ls.log

You save this script for example here /usr/local/bin , for example under the name cprandom,
then you make it executable.
chmod +x /usr/local/bin/cprandom
then you work
cprandom $1 $2 $3
where
$1 is the address of the folder with your files
$2 - the address of the folder where to copy the random ones
$3 - indicate the number of digits starting from 0 that participate in the random, that is, specifying 1 there will always be 0 and all files will be copied, 2 - 50 by 50, 3, a third, and so on. The default value is 6
That is, for example
, cprandom /home/vity /tmp 20
Enjoy using it))
I wrote on my knee, I didn’t even run it once, but it seems without errors. If anything write)

Answer 2

And you can write a script in bash, especially since the question section
is "BASH LINUX TERMINAL" :)
Using a random number generator in bash. For example, shuf -i 100000-999999 -n 100000
this will generate 100000 sl. numbers in the range from 100000 to 999999, which can be used to randomly select the files you need in a loop.

Answer 3

ls | shuf | tail | mv
Something like that. Collect the keys yourself according to man-s.

Answer 4

You can write a python script