[NTLUG:Discuss] regexp/script

[Eric Schnoebelen]

"Daniel Hauck" writes:
- You know?  For lack of a simple shell-based solution popping into
- my mind, I'd write a short and simple C program do to the work
- for me.

	You're not thinking of all the features of the shell
then.

	Problem Statement:
	    Given a list files that contains a finite number
	    of lines of input, generate a single output stream
	    consisting of the name of the file, followed by
	    the lines of the file, concatenated into a single
	    line with commas.

	Solution (in Bourne Shell):

	    #! /bin/sh
	    # iterate over the list of files provided on the
	    # command line.  "$@" is the quoted list of
	    # arguments
	    for file in "$@"; do
		# assuming BSD echo here, sysv would look like:
		# echo "${file},\c"
		echo -n "${file},"

		# read the line from the file
		while read line ; do
		    echo -n "${line},"
			# < ${file} means that the loop gets
			# its input from ${file}
		done < ${file}
		# dump out a trailing newline, since we've
		# been suppressing them up until now.
		echo ""
	    done

- ----- Original Message -----
- From: "Wrenn, Bobby J." <Bobby.Wrenn at banctec.com>
- To: <discuss at ntlug.org>
- Sent: Tuesday, October 23, 2001 12:10 PM
- Subject: [NTLUG:Discuss] regexp/script
- 
- 
- > I have some files (209 total) with customer address information.
- > I need to get the customer address into a comma delimited file
- > with the file name (minus extension) as the first field.
- >
- > The file names have spaces in the name and a .txt extension
- > Each file has the address embedded like this:
- > ============================
- >                Equipment Location
- >                __________________
- > Comments
- >
- > _________
- >                Customer Name
- >                123 Somestreet
- >                Somecity                  ST  12345
- >
- > ===========================

	If there are headers involved, you'll need to apply some
more advanced parsing to the while loop above, to drop the
headings.  A case or if statement should be able to do the
needed pattern matching.

- > Is there an easy way to get the addresses out of the files?
- > Because I am trying to learn this, an explanation of the process
- > would be helpful. Ifit is more complicated than I anticipate,
- > please contact me off list with your price for the answer. I
- > can expense a small fee.

	How about a beer?? :-)

--
Eric Schnoebelen		eric at cirr.com		http://www.cirr.com
      When your hammer is C++, everything begins to look like a thumb. 
		    -- Steve Haflich, comp.lang.c++