Print date at END clause of AWK

[fmeriles]

Originally Posted by radoulov

You can use something like this:

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

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:

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:

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!