Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Perl: Getting $ARGV's to operate like while(<>)
Top Forums Shell Programming and Scripting Perl: Getting $ARGV's to operate like while(<>) Post 302127606 by jjinno on Wednesday 18th of July 2007 07:49:20 PM
Old 07-18-2007
Perl: Getting $ARGV's to operate like while(<>)
I have a script that asks a bunch of questions using the following method for input:
Code:
print "Name:"; 
while(<>){ 
    chomp; 
    $name=$_; 
}

So for example, if the questions asked for name, age, & color (in that order)... I want to be able to easily convert $ARGV[0] into the input expected by <>.

So, just for clarification, the user can run the script as is, answer a bunch of questions, and be done... OR they can know the order of the questions, and put answers to as many as they want in the command line arguments

Irony is that Im asking if there is a way to place $ARGV[0] inside the <> instead of letting <> try to read the file specified by $ARGV[0] like it does by default
 

7 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

To operate MENU via script

Hi, I run this utility very frequently. This utility displays some 5 options and again inturn these options have few more option to select. For Eg : It looks like this 1. User Control 2. Locking and Waiting Statistics 3. Block Access 4. Record Locking Table 5. ... (1 Reply)
Discussion started by: ashokm
1 Replies

2. Shell Programming and Scripting

how to include slashes "/" in @ARGV (Perl)

Hello I have simple script that will accept as arg string like this : ".../foo/blah/,.../.../foo1/,.../blah" now perl automatically removes the slashes "/" , I can't escape the slashes in the input I have to control on it so how can I force perl to not touch this slashes? Thanks ... (5 Replies)
Discussion started by: umen
5 Replies

3. UNIX for Advanced & Expert Users

O argv, argv, wherefore art thou argv?

All of my machines (various open source derivatives on x86 and amd64) store argv above the stack (at a higher memory address). I am curious to learn if any systems store argv below the stack (at a lower memory address). I am particularly interested in proprietary Unices, such as Solaris, HP-UX,... (9 Replies)
Discussion started by: alister
9 Replies

4. Shell Programming and Scripting

Match in perl not working with ARGV

Hi , I need to match module data_tx_dig ( I tried matching ~m/module(\s+)ARGV(\s+)\(/ --> (generic code)but is not working.The same is able to match when i provide hardcoded value instead of passing from the command line. ~m/module(\s+)data_tx_dig(\s+)\(/ -->(hardcoded code).Please help me... (8 Replies)
Discussion started by: dll_fpga
8 Replies

5. Shell Programming and Scripting

Wildcarding in a Perl @ARGV Context?

Hello folks! While "sedding" about again, I ran into this little conundrum du jour:#!/usr/bin/perl use strict; use warnings; use diagnostics; @ARGV = ('./afile.dat', './*.txt'); $^I = ''; while (<>) { s/Twinkies/Dinner/g; print; }When run, perl complains,...but, of... (1 Reply)
Discussion started by: LinQ
1 Replies

6. Shell Programming and Scripting

Wildcarding in a Perl @ARGV Context?

Hello folks! While "sedding" about again, I ran into this little conundrum du jour:#!/usr/bin/perl use strict; use warnings; use diagnostics; @ARGV = ('./afile.dat', './*.txt'); $^I = ''; while (<>) { s/Twinkies/Dinner/g; print; }When run, perl complains,...but, of... (2 Replies)
Discussion started by: LinQ
2 Replies

7. Shell Programming and Scripting

Perl sys.argv issue

I am running a perl script and reading the arguments passed to the script as below..... resembles more arguments. java weblogic.WLST /web/update.py 34 56 .... I am trying to print the arguments passed to the update.py script as below for arg in sys.argv: print "other args:", arg... (1 Reply)
Discussion started by: mohtashims
1 Replies

LEARN ABOUT V7

dpkg-preconfigure

DPKG-PRECONFIGURE(8)						      Debconf						      DPKG-PRECONFIGURE(8)

NAME

       dpkg-preconfigure - let packages ask questions prior to their installation

SYNOPSIS

	dpkg-preconfigure [options] package.deb

	dpkg-preconfigure --apt

DESCRIPTION

       dpkg-preconfigure lets packages ask questions before they are installed.  It operates on a set of debian packages, and all packages that
       use debconf will have their config script run so they can examine the system and ask questions.

OPTIONS

       -ftype, --frontend=type
	   Select the frontend to use.

       -pvalue, --priority=value
	   Set the lowest priority of questions you are interested in. Any questions with a priority below the selected priority will be ignored
	   and their default answers will be used.

       --terse
	   Enables terse output mode. This affects only some frontends.

       --apt
	   Run in apt mode. It will expect to read a set of package filenames from stdin, rather than getting them as parameters. Typically this
	   is used to make apt run dpkg-preconfigure on all packages before they are installed.  To do this, add something like this to
	   /etc/apt/apt.conf:

	    // Pre-configure all packages before
	    // they are installed.
	    DPkg::Pre-Install-Pkgs {
		   "dpkg-preconfigure --apt --priority=low";
	    };

       -h, --help
	   Display usage help.

SEE ALSO

       debconf(7)

AUTHOR

       Joey Hess <joeyh@debian.org>

								    2018-02-28						      DPKG-PRECONFIGURE(8)
All times are GMT -4. The time now is 12:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy