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Full Discussion: Count Number Of lines in text files and append values to beginning of file
Top Forums UNIX for Dummies Questions & Answers Count Number Of lines in text files and append values to beginning of file Post 302517458 by motoxeryz125 on Tuesday 26th of April 2011 10:27:24 PM
Old 04-26-2011
Count Number Of lines in text files and append values to beginning of file
Hello,

I have 50 text files in a directory called "AllFiles"

I want to make a program that will go inside of the "AllFiles" Directory and count the number of lines in each individual text file. Then, the program will calculate how many more lines there are over 400 in each text file and append this information to the beginning of each text file.

For example, lets say i have 5 files in a directory in the "AllFiles" directory:

file1.txt ---has 500 lines
file2.txt ---has 600 lines
file3.txt ---has 550 lines
file4.txt ---has 700 lines
file5.txt ---has 480 lines


The result of the program should be this:

The first line of file1.txt should read: "there are 400 lines in this file and 100 bonus lines"
The first line of file2.txt should read: "there are 400 lines in this file and 200 bonus lines"
The first line of file3.txt should read: "there are 400 lines in this file and 150 bonus lines"
The first line of file4.txt should read: "there are 400 lines in this file and 300 bonus lines"
The first line of file5.txt should read: "there are 400 lines in this file and 80 bonus lines"

Is there any way that i can do this using the command prompt?

I have tried using 'sed' to do this, but i guess i am missing several necessary libraries. I have GNUwin32. I downloaded the program from gnuwin32DOTsourceforgeDOTnet/packages/sedDOThtm. I downloaded and installed the "completed package, except resources" file and "resources" file.

But, i really have no idea how to use sed. I have tried a couple command prompt line items, but most of them end up in errors.

I don't have visual studio, but i do have the Microsoft office Visual Basic editor, and i have tried a few basic things to do this with no success.

Any ideas would be greatly appreciated.

If it matters, my computers operating system is Windows 7.
 

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LEARN ABOUT HPUX

fmt

fmt(1)							      General Commands Manual							    fmt(1)

NAME

       fmt - format text

SYNOPSIS

       width] [file...]

DESCRIPTION

       The  command is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in
       the width option.  The default width is 72.  concatenates the arguments.  If none are given, formats text from the standard input.

       Blank lines are preserved in the output, as is the spacing between words.  does not fill lines beginning with a	period	for  compatibility
       with Nor does it fill lines starting with

       Indentation is preserved in the output and input lines with differing indentation are not joined (unless is used).

       can also be used as an in-line text filter for the command:

       reformats the text between the cursor location and the end of the paragraph.

   Options
       recognizes the following options:

	      Crown margin mode.
		    Preserve the indentation of the first two lines within a paragraph and align the left margin of each subsequent line with that
		    of the second line.  This is useful for tagged paragraphs.

	      Split lines only.
		    Do not join short lines to form longer ones.  This prevents sample lines of code, and other such "formatted" text, from  being
		    unduly combined.

	      Fill output lines to up to
		    width columns.

WARNINGS

       The width option is acceptable for BSD compatibility, but it may go away in future releases.

SEE ALSO

       nroff(1), vi(1).

																	    fmt(1)
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