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Prepend Number to File Name without loop BASH

May 21st, 2022
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  1. #!/bin/bash
  2. ######################################################################
  3. #Copyright (C) 2022  Kris Occhipinti
  4. #https://filmsbykris.com
  5.  
  6. #This program is free software: you can redistribute it and/or modify
  7. #it under the terms of the GNU General Public License as published by
  8. #the Free Software Foundation, either version 3 of the License, or
  9. #(at your option) any later version.
  10.  
  11. #This program is distributed in the hope that it will be useful,
  12. #but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14. #GNU General Public License for more details.
  15.  
  16. #You should have received a copy of the GNU General Public License
  17. #along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18. ######################################################################
  19.  
  20. #create 20 random files
  21. touch $(grep -E '^[[:alpha:]]{5}$' /usr/share/dict/words|shuf |head -n20)
  22.  
  23. #this is a oneliner that will count the number of files in a directory
  24. #and then prepend a number to the file name
  25. #currently doesn't work in script, but copy and paste it to the shell
  26. paste <(printf 'mv\n%.0s' {1..$(ls|wc -l)}) <(ls) <(ls|nl -n'rz' -s"_" -w3)|xargs -I {} bash -c "eval {}"
  27.  
  28.  
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