function rjust_file_nums() {for i in *.ogg; do; mv $i `ruby -e "print ARGV.first.gsub(/\d+/){|d| d.rjust($1,'0')}" $i`; done}

convert single digit to double digits

each number in a file name gets expanded to the number of digets provided as arg_1 of the arguments in rjust_file_nums. Put the funciton in the .bashrc file. Be sure to $ source ~/.bashrc so that the function will be accessible from bash.
Sample Output
$ ls
1i10.ogg
$ rjust_file_nums 3
$ ls 
001i010.ogg

2
By: timrand
2012-05-19 15:41:06
mv

7 Alternatives + Submit Alt

  • from 1.ogg 2.ogg 3.ogg 10.ogg 11.ogg to 01.ogg 02.ogg 03.ogg 10.ogg 11.ogg


    21
    for i in ?.ogg; do mv $i 0$i; done
    Bonster · 2012-05-15 02:52:52 1
  • Uses 'rename' to pad zeros in front of first existing number in each filename. The "--" is not required, but it will prevent errors on filenames which start with "-". You can change the "2d" to any number you want, equaling the total numeric output: aka, 4d = ????, 8d = ????????, etc. I setup a handful of handy functions to this effect (because I couldn't figure out how to insert a var for the value) in the form of 'padnum?', such as: padnum5 () { /usr/bin/rename 's/\d+/sprintf("%05d",$&)/e' -- $@ } Which would change a file "foo-1.txt" to "foo-00001.txt"


    6
    rename 's/\d+/sprintf("%02d",$&)/e' -- $@
    Vilemirth · 2013-02-14 18:29:18 1
  • works only in zsh, requires autoload zmv


    2
    zmv '(?.ogg)' '0$1'
    bst · 2012-05-15 18:17:09 0
  • each number in a file name gets expanded to the number of digets provided as arg_1 of the arguments in rjust_file_nums. Put the funciton in the .bashrc file. Be sure to $ source ~/.bashrc so that the function will be accessible from bash. Show Sample Output


    1
    function rjust_file_nums(){for i in *.ogg; do; mv $i `ruby -e "print ARGV.first.gsub(/\d+/){|d| d.rjust($1,'0')}" $i`; done }
    timrand · 2012-05-19 15:39:39 0
  • This command takes a few changes to get to the file format, but once you have that, you're good to go. Set your environment variables and then change the text "front" and "back" to whatever you're files start and end with. You'll end up with some easily sort-able files. Show Sample Output


    0
    zeros=3; from=1; to=15; for foo in $(seq $from $to); do echo mv "front${foo}back" "front$(printf "%0${zeros}d\n" $foo)back"; done
    ClashTheBunny · 2012-05-17 10:54:45 0

What Others Think

why *.ogg? isnt that a sound file?
chrismccoy · 312 weeks and 2 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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