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Top Forums Shell Programming and Scripting A twisted feature of sort when called in awk Post 302377490 by radoulov on Friday 4th of December 2009 07:38:42 AM
Old 12-04-2009
The command begins executing when the pipe opens.
The data will be buffered and you see the result when the output buffers gets flushed (automatically or manually).

Or you expected to see this:

Code:
% awk 'BEGIN {
  n = split("c a b", t)
  while (++i <= n) {
    print t[i] | "sort"
    print "hello world!"
  }
  close("sort")
}'   
hello world!
hello world!
hello world!
a
b
c

As you probably already know, you need the braces when the block contains more than one command.
 

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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). Free Software Foundation Nov 3 1999 IGAWK(1)
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