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Full Discussion: while using read command I want too.....
Top Forums UNIX for Dummies Questions & Answers while using read command I want too..... Post 25962 by Perderabo on Thursday 8th of August 2002 08:19:45 AM
Old 08-08-2002
The problem here is that you can't insert data into a file. You must write a new file with the insertions made. So you can do this:
Code:
#! /usr/bin/ksh
exec < inputfile
exec > tempfile
while read line ; do
      echo READ "$line"
done

mv inputfile oldinputfile
mv tempfile inputfile
exit 0

But I don't see the point. The script is going to read every line anyway.
 

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LEARN ABOUT DEBIAN

gendesc

gendesc(1)							   User Manuals 							gendesc(1)

NAME

       gendesc - Generate a test case description file

SYNOPSIS

       gendesc [-h|--help] [-v|--version]
	       [-o|--output-filename filename]
	       inputfile

DESCRIPTION

       Convert plain text test case descriptions into a format as understood by genhtml.  inputfile needs to observe the following format:

       For each test case:

	    - one line containing the test case name beginning at the start of the line

	    - one or more lines containing the test case description indented with at least one whitespace character (tab or space)

       Example input file:

       test01
	      An example test case description.
	      Description continued

       test42
	      Supposedly the answer to most of your questions

       Note: valid test names can consist of letters, decimal digits and the underscore character ('_').

OPTIONS

       -h
       --help
	      Print a short help text, then exit.

       -v
       --version
	      Print version number, then exit.

       -o filename
       --output-filename filename
	      Write description data to filename.

	      By default, output is written to STDOUT.

AUTHOR

       Peter Oberparleiter <Peter.Oberparleiter@de.ibm.com>

SEE ALSO

       lcov(1), genhtml(1), geninfo(1), genpng(1), gcov(1)

2010-08-06							     LCOV 1.9								gendesc(1)
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