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Full Discussion: Problem while taking input from User
Top Forums Shell Programming and Scripting Problem while taking input from User Post 302382854 by swapnil.nawale on Saturday 26th of December 2009 11:31:08 AM
Old 12-26-2009
Problem while taking input from User
Hi All,

I am facing a problem while taking input from user in Shell Script. Basically , I want to read a file line by line. And I want to remove certain lines of that file.But before removing those lines , I need to ask the user whether user wants to remove the lines. If user inputs "Yes" , the Shell Script will remove the line.

But the Shell Script that I have written is not stopping it's execution to take input from user.

e.g.

If a file abc.txt has following content :
Code:
1
2
3
4
5
6
7

then I want to remove the line with content as 3.
The Shell Script , I am using is :
Code:
while read fileContent
do
	if test "$fileContent" -eq "3"
	then
		echo " Do you want to remove this line ? (Y/N ) : "
	
		read inputline
		
		if test "$inputline" = "Y"
		then
			[Code to remove line from file ....]
		fi
		echo $what
	fi
done < abc.txt

The Shell Script execution is not allowing user to enter input , instead it's displaying content of line 4 and terminating.

Can anyone please solve above issue ?

TIA
 

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LEARN ABOUT OSX

cpanplus::shell::default::plugins::source

CPANPLUS::Shell::Default::Plugins::Source(3pm)		 Perl Programmers Reference Guide	    CPANPLUS::Shell::Default::Plugins::Source(3pm)

NAME

       CPANPLUS::Shell::Default::Plugins::Source - read in CPANPLUS commands

SYNOPSIS

	   CPAN Terminal> /source /tmp/list_of_commands /tmp/more_commands

DESCRIPTION

       This is a "CPANPLUS::Shell::Default" plugin that works just like your unix shells source(1) command; it reads in a file that has commands
       in it to execute, and then executes them.

       A sample file might look like this:

	   # first, update all the source files
	   x --update_source

	   # find all of my modules that are on the CPAN
	   # test them, and store the error log
	   a ^KANE$'
	   t *
	   p /home/kane/cpan-autotest/log

	   # and inform us we're good to go
	   ! print "Autotest complete, log stored; please enter your commands!"

       Note how empty lines, and lines starting with a '#' are being skipped in the execution.

BUG REPORTS

       Please report bugs or other issues to <bug-cpanplus@rt.cpan.org<gt>.

AUTHOR

       This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT

       The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans <kane@cpan.org>. All rights reserved.

       This library is free software; you may redistribute and/or modify it under the same terms as Perl itself.

SEE ALSO

       CPANPLUS::Shell::Default, CPANPLUS::Shell, cpanp

perl v5.16.2							    2012-10-11			    CPANPLUS::Shell::Default::Plugins::Source(3pm)
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