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Top Forums Shell Programming and Scripting How to sort with ls -lh command? Post 302918044 by Don Cragun on Saturday 20th of September 2014 05:04:10 AM
Old 09-20-2014
In addition to what Chubler_XL has already said, the entire purpose of the code:
Code:
bytes=$5 * 1024^index("KMGTPEZY", toupper(substr($5,length($5))));
  printf "%.0f ", bytes

is to undo what the ls -h option did and give you an approximation to the actual file size in bytes that can be sorted numerically. If you were willing to change the 1st command in your pipeline from ls -lh to just ls -l, those two statements could be removed from the awk script and the sed command (which deletes the file size in bytes from the output) could be removed from the end of the pipeline.
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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