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  1. #!/bin/bash
  2.  
  3. # ideone boilerplate - we can't write files in the home directory;
  4. # so create a temporary directory for our files instead
  5. t=$(mktemp -d -t ideone.XXXXXXXXXXXX) || exit
  6. trap 'rm -rf "$t"' ERR EXIT
  7. cd "$t"
  8.  
  9. cat <<\: >a.txt
  10. 12
  11. 23
  12. 45
  13. 56
  14. :
  15.  
  16. awk 'NR>1 { close(f) }
  17.     { f=++n ".txt"; print >f }' a.txt
  18.  
  19. tail [1-9]*.txt
Success #stdin #stdout 0.01s 5412KB
comments (?)
stdin
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Standard input is empty
stdout
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==> 1.txt <==
12

==> 2.txt <==
23

==> 3.txt <==
45

==> 4.txt <==
56
https://ideone.com/a65wFT
https://stackoverflow.com/questions/72182862/how-to-add-1-txt-2-txt-3-txt-4-txt-at-the-end-of-each-line-of-file
language:
Bash (bash 5.0.3)
created:
3 years ago
visibility:
public

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