Converts the number of bytes into a user-readable format _2

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Next, "Convert bytes to user-readable format", the previous article is mainly using the existing tools (NUMFMT, GNU coreutils >= 8.21) to convert But my original purpose in documenting this article was to encode and implement the relevant functions (such as writing a alias/function in. BASHRC for everyday use), and the content of this article is to introduce this feature through a variety of programming languages.

Reference Answer:

1.awk/gawk

# Okecho "12454162221" |    awk ' BEGIN {split ("B,KB,MB,GB,TB", Units, ",");       } {u = 1;          while ($ >= 1024) {$ = $1/1024;       U + = 1} $ = sprintf ("%.2f%s", $ units[u]);    print $; } ' # Okecho ' 12454162221 ' | Gawk ' BEGIN {split ("Kmgtpezy", suff,//)} {match ($0,/([0-9]+)/,bits) sz=bits[1]+0 i=0; while ((sz>1024) && (i
     
  
    
  
2.Perl
    
  
         

  
echo "12454162221" | Perl-ne ' if (/^ (\d+)/) {$l =log ($1+.1); $m =int ($l/log (1024x768)); printf ("%6.1f\t%s\n", ($1/(2**), 10* $m)), ("K", "M", "G", "t "," P ") [$m-1]);} ' # echo "12454162221" in G as the largest unit | Perl-pe ' s{([0-9]+)}{sprintf "%.1f%s", $1>=2**30? ($1/2**30, "G"): $1>=2**20? ($1/2**20, "M"): $1>=2**10? ($1/2**10, "K"): ($, "")}e '
    
  
    
  
3.Python
    
  
         

  
Defbytes_format (FileSize, unit=1024):    unit = float (unit) for    countin [' Bytes ', ' KB ', ' MB ', ' GB ', ' TB ', ' PB ']:        if 0 < filesize < unit:            return ' {0:.3f} {1} '. Format (filesize, count)        filesize/= Unit Printbytes_forma T (12454162221)
    
  
    
  
4.PHP
    
  
         

  
 
    $bytesize) {      s/= $bytesize;      $index + +;  }  Return ("". Round (s, 2). " ". $readable [$index]);} Echobytes_format (12454162221). "\ n"; Echobytes_format (124541622210). "\ n"; Echobytes_format (1245416222100). "\ n";
    
  
    
  
Reference Links:
    
  
 

   
  
 
   
 http://unix.stackexchange.com/questions/44040/a-standard-tool-to-convert-a-byte-count-into-human-kib-m IB-ETC-LIKE-DU-LS1 
 
   
 Http://stackoverflow.com/questions/15854332/file-size-in-human-readable-format 
 
   
 Http://www.kossboss.com/linux-bytes-to-human-readable-command 
 
   
 http://ram.kossboss.com/humanbytesawk/
 
   
 http://ram.kossboss.com/linux-bytes-to-human-readable-command/
 
   
 Http://superuser.com/questions/553976/how-to-display-the-size-in-human-readable-format-in-the-find-command /554027#554027 
 
   
 http://serverfault.com/questions/62411/how-can-i-sort-du-h-output-by-size 
 
   
 http://codesnippets.fesslersoft.de/format-bytes-to-human-readable-size/
 
   
 http://www.developerfeed.com/ how-convert-bytes-human-readable-string-format-php/
 
   
 http://www.ivankristianto.com/ tips-convert-your-numbers-to-human-readable-format/
 
  
  
 
    
  
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