Sorting content between match pattern and move on with awk and sed

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# 8  
Old 07-25-2014
This is specific to the specific input sample you gave; nevertheless it should work on other structures after some adaption.
awk     'NF==1  {print | "sort"}        # one field: record member; add to sort input via pipe; sort will print to stdout when pipe is closed.
         NF!=1  {close ("sort"); print} # record header or empty line; close the sort pipe to finish sorting the record; print header to stdou
        ' file

Last edited by RudiC; 07-25-2014 at 12:56 PM..
# 9  
Old 07-25-2014
what is the content is not one field?
S 0.0 0.0 (reg, inst050)
kfdasdf dsaf
easd sadfas 
ffadsfasfdsadsa  dsafdsafas
dd8385fdsa asdasdfaf2432vdsaf 
dsafcfasfdsa f32f32asf322dsdsaf

Last edited by radoulov; 07-25-2014 at 12:38 PM..
# 10  
Old 07-25-2014
If there are only whitespace characters on a line, the number of fields is 0. Otherwise, the number of fields is the number of sequences of non-whitespace characters separated by sequences of whitespace characters.

This is why it is so important to give us representative sample input for the problem you want to solve...

Still making some wild assumptions based on the sample input you have shown us, try:
awk '
!NF || /^S .*[(].*[)]$/ {
	# Close pipe to sort when we get a blank line or a section header.
	# Copy the blank or section header line to standard output.
{	# Feed other lines to sort.
	print | "sort"
}' file

Last edited by Don Cragun; 07-25-2014 at 11:40 AM.. Reason: Add missing 1st line...
This User Gave Thanks to Don Cragun For This Post:
# 11  
Old 07-25-2014
thanks Don Cragun.
you just give me hint on how i should proceed with my several cases and i just made it. thanks.

thanks to RudiC on the example. i have fun with it.

now i can produce what i want.. it save me a lot of efforts. thanks guys.
# 12  
Old 07-25-2014
Originally Posted by ctphua
what is the content is not one field?
S 0.0 0.0 (reg, inst050)
kfdasdf dsaf
easd sadfas 
ffadsfasfdsadsa  dsafdsafas
dd8385fdsa asdasdfaf2432vdsaf 
dsafcfasfdsa f32f32asf322dsdsaf

Whenever you can distinguish record headers/separators from the record data, that code snippet will work. Don Cragun refined the conditions from your very specific sample to a more general one; for other data structures you need to come up with your own, new conditions...
This User Gave Thanks to RudiC For This Post:
# 13  
Old 07-25-2014
Just for your info:
with GNU awk 4+ you don't need an external program for sorting:

awk 'BEGIN {
  # scan arrays by values ASCIIbetical order  
  PROCINFO["sorted_in"] = "@val_str_asc"
  # split $0 by NL
  n = split($0, t, "\n")
  print t[1]; delete t[1]
  # output in order
  for (e in t)
    print t[e]
  # print the logical RS    
  print ""    
  }' RS= infile

With Perl:
perl -F'\n' -lan00e'
  print join "\n", shift @F, (sort @F), $/
   ' infile

This User Gave Thanks to radoulov For This Post:
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