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Full Discussion: Print date at END clause of AWK
Special Forums UNIX and Linux Applications Print date at END clause of AWK Post 302369053 by fmeriles on Friday 6th of November 2009 10:09:46 AM
Old 11-06-2009
Quote:
Originally Posted by radoulov
You can use something like this:

Code:
awk <<< 1  'BEGIN {
  printf "start: "; system("date")
  }
system("sleep 3")
END {
  printf "end: "; system("date") 
  }'


Code:
zsh-4.3.10[sysadmin]% awk <<< 1  'BEGIN {
  printf "start: "; system("date")
  }
system("sleep 3")
END {
  printf "end: "; system("date")
  }'  
start: Fri Nov  6 15:38:53     2009
end: Fri Nov  6 15:38:56     2009

---------- Post updated at 03:47 PM ---------- Previous update was at 03:31 PM ----------

Actually, you just need to close the external command:

Code:
awk <<< 1  'BEGIN {
  "date" | getline dt
  close("date")
  print "start:", dt
  }
system("sleep 3")
END {
  "date" | getline dt
  close("date")
  print "end:", dt 
  }'


Like this:

Code:
zsh-4.3.10[sysadmin]% awk <<< 1  'BEGIN {
  "date" | getline dt
  close("date")
  print "start:", dt
  }
system("sleep 3")
END {
  "date" | getline dt
  close("date")
  print "end:", dt
  }' 
start: Fri Nov  6 15:47:23     2009
end: Fri Nov  6 15:47:27     2009


It works! Thank you very much dude!
 

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LEARN ABOUT SUSE

igawk

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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