Linux – Paste the Linux script

I have a small question, thank you very much for your help.

I need to merge different text files together using the paste command :

paste -d, ~/Desktop/*.txt  > ~/Desktop/Out/merge.txt

However, the files were merged out of order. (Text file numbers 1, 2, 3, etc.).

I’m using *.txt because different scenes have different numbers of files.

Would you mind helping me?

If you use modern bash, you can write like this:

paste -d, ~/Desktop/{1..10}.txt  > ~/Desktop/Out/merge.txt

If not, you have to use something like :

paste -d, $(seq 1 10 | sed 's@.*@~/Desktop/&.txt) > ~/Desktop/Out/merge.txt

If you don’t know what files are in your directory,
You can list them and sort them:

cd ~/Desktop/
paste -d, $(ls -1d *.txt| sort -n) > ~/Desktop/Out/merge.txt

Example:

$ touch {1..20}.txt
$ echo $(ls -1 | sort -n)
1.txt 2.txt 3.txt 4.txt 5.txt 6.txt 7.txt 8.txt 9.txt 10.txt 11.txt 12.txt 13.txt 14.txt 15.txt 16.txt 17.txt 18.txt 19.txt 20.txt

Example 2:

$ echo hello > 1.txt
$ echo dear > 5.txt
$ echo friend > 11.txt
$ paste -d, $(ls -1d *.txt| sort -n)
hello,dear,friend