Shell Programming and Scripting

I have the following data in a file and would like to append the lines inside each section 10, 20, 30, 40, etc... onto one line for each of the sections. Is it possible with SED to make this happen??


10 00039393 DOCK: RECEIVE PART, TAG. D D
0000 SHIPPING/RECEIVING I 682 CRT

DOCK: RECEIVE PART. TAG PART.


20 00050670 INSP: VIS/DIM INSP D D OPSK 1
0020 INSPECTION-DIMENSIONAL I 671 RSN 251

INSP: VISUAL/DIMENSIONAL INSPECTION.


30 00039395 GRIND: INSP & RECORD RUNOU D D OPSK 1
2001 DEVLIEG - JIG-MILL I 672 RSN 251
PRSH 1,2,3,4
GRIND: INSPECT AND RECORD RUNOUTS.
MACHINE CHECK TO SAVE PRIOR TO
GRINDING DIAMETERS C AND D.


40 00046094 REVIEW: PL REVIEW FOR REPA D D
0055 PRODUCTION I 677

REVIEW: PRODUCT LEADER REVIEW FOR
REPAIRS.

I'm not familiar with awk (not that familiar with sed either). Any thoughts on what my command would look like??

If you have GNU awk:

Code:

awk --re-interval 'END { 
  if (r) print r, RS 
  }
/^[0-9]* [0-9]{8}/ && r {
  print r, RS; r = "" 
  }
{ r = r ? r FS $0 : $0 }
' infile

If you're on Solaris, you should use /usr/xpg4/bin/awk:

Code:

/usr/xpg4/bin/awk 'END { 
  if (r) print r, RS 
  }
/^[0-9]* [0-9]{8}/ && r {
  print r, RS; r = "" 
  }
{ r = r ? r FS $0 : $0 }
' infile

If you're on other platorm and your awk implementation does not support re-interval, you should modify the regular expression.

Other possible solutions with GNU awk:

Code:

awk '$1=$1' RS='\n\n\n' ORS='\n\n'  infile

Or (if you don't wont to squeeze the blank characters):

Code:

awk  -F'\n' '$1=$1' RS='\n\n\n' ORS='\n\n'  infile