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Full Discussion: Help with an (easy) parser
Top Forums Shell Programming and Scripting Help with an (easy) parser Post 302214634 by joeyg on Monday 14th of July 2008 12:25:37 PM
Old 07-14-2008
Hammer & Screwdriver Many ways to do, but here is one
Code:
> cat in_file
@<TRIPOS>MOLECULE
core; [Isoc-015]
41 42 2
SMALL
NO_CHARGES
(...)
@<TRIPOS>MOLECULE
core; [Isoc-167]
41 41 2
SMALL
NO_CHARGES
(...)
@<TRIPOS>MOLECULE
core; [Isoc-085]
41 42 2
SMALL
NO_CHARGES
(...)
@<TRIPOS>MOLECULE
core; [Isoc-267]
41 41 2
SMALL
NO_CHARGES
(...)

Code:
> cat mk_file
#! /usr/bin/bash
#
# reads in_file
# creates sequentially numbered output files

count=0000
out_f="molecule"
while read zf
   do
   char1=$(echo "$zf" | cut -c1)
   if [ $char1 = "@" ]
      then
      count=$((count+1)) 
      countt=$(printf "%.4d" "$count")
      out_file="$out_f""$countt"
   fi
   echo $countt "$zf"
   echo "$zf" >>$out_file 
done<in_file

Program execution displays progress and builds files
Code:
> ls molecule*
molecule0001  molecule0002  molecule0003  molecule0004

Note that I designed to count from 0001 to 9999 for molecule filenames.
 

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LEARN ABOUT BSD

gcore

GCORE(1)						      General Commands Manual							  GCORE(1)

NAME

       gcore - get core image of running process

SYNOPSIS

       gcore [-s][-c core] pid

DESCRIPTION

       gcore  creates  a  core	image  of  each specified process, suitable for use with adb(1).  By default the core image is written to the file
       <pid>.core.

       The options are:

       -c     Write the core file to the specified file instead of <pid>.core.

       -s     Stop the process while creating the core image and resume it when done.  This makes sure that the core dump will be in a	consistent
	      state.   The  process is resumed even if it was already stopped.	Of course, you can obtain the same result by manually stopping the
	      process with kill(1).

       The core image name was changed from core.<pid> to <pid>.core to prevent matching names like core.h and core.c when using programs such	as
       find(1).

FILES

       <process-id>.core   The core image.

BUGS

       If gcore encounters an error while creating the core image and the -s option was used the process will remain stopped.

       Swapped out processes and system processes (the swapper) may not be gcore'd.

4.2 Berkeley Distribution					  April 15, 1994							  GCORE(1)
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