Sponsored Content
Full Discussion: ARGV how to use it?
Top Forums UNIX for Dummies Questions & Answers ARGV how to use it? Post 302967812 by squidGreen on Sunday 28th of February 2016 06:10:27 PM
Old 02-28-2016
ARGV how to use it?

So i am trying to read in file
readFile <GivenFile> modFile
looking for a regular file under the directories in the GivenFile and print them out is my over all goal.
basically I am looking for anything that looks like a directory in the given file and printing it out.
Since I am trying to do this in baby steps because I have never worked with perl.
in my file I have something like
Code:
!#/usr/bin/perl -w
#for starters I just want to see something I dont care what it is
while(< >){
print;
print "yass something kinda happen \n";
}

as of now you can see I dont have anything remotely checking to see if this is regular file or not.
Ive been reading all over the net and my book notes, feeling a little bit of heat here because ive been running into little hick ups here and there.
THanks for reading.
 

10 More Discussions You Might Find Interesting

1. Programming

argv

I have a program which I wish to modify. It used to be run from the command line, but now I wish to change this so it can be used as a function. The program has complex argument processing so I want to pass my paramters to as if it were being called by the OS as a program. I have tried to... (2 Replies)
Discussion started by: mbb
2 Replies

2. Programming

Using argv argc

I searched on the forums. No advises. I am using a previous source code. I changed the main function main(int argc, char **argv) in a function misc(int argc, char **argv). How do you use the argc and argv parameters? This is how I am calling the function : char param; strcat(param,"wgrib ");... (4 Replies)
Discussion started by: Akeson Chihiro
4 Replies

3. Shell Programming and Scripting

Perl: Getting $ARGV's to operate like while(<>)

I have a script that asks a bunch of questions using the following method for input: 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 into the input expected by... (2 Replies)
Discussion started by: jjinno
2 Replies

4. Programming

help for argv argc

Hi C experts, I have the following code for adding command line option for a program int main (argc, argv) int argc; char *argv; { char *mem_type; //memory type char *name; //name of the memory int addr; //address bits int data; ... (5 Replies)
Discussion started by: return_user
5 Replies

5. Shell Programming and Scripting

if #argv = (this OR that) then...

this is in one of my scripts... if ($#argv == 0) then echo 'blah bla' exit 0 endif I want it to be something like this... if ($#argv == 0 OR $argv >=3) echo 'blah bla' exit 0 endif so when the arguments are none, or greater than three I want this "if then" to take over. how? I... (5 Replies)
Discussion started by: ajp7701
5 Replies

6. Shell Programming and Scripting

$#Argv in Csh

Hello all, Had a quick question: In a typical csh script should inputting via stdin (i.e. set i = $< ) increase the value of $#argv ? echo enter an value: set val= "$<" if($#argv == 0) then echo No args else echo The arg is $argv so if a value is inputted #argv... (1 Reply)
Discussion started by: new2C
1 Replies

7. Programming

ARGV help in C

Hi, Can somehelp help how to list file in a dir? (5 Replies)
Discussion started by: Learnerabc
5 Replies

8. Programming

help with C, argv

when i run my program, i have a parameter, that i want to set the value to another string i am using int main(int argc, char **argv) { char my_str=argv; printf("%s",my_str); return 0; } and i get Segmentation fault ran using ./my_prog /usr/share/dict/words hello1 ... (2 Replies)
Discussion started by: omega666
2 Replies

9. Programming

How do I copy or rewind *argv[]

I'm working on my own pow function and I need to make a copy of *argv but I think that I am having trouble with the size of *argv and the size of any array that I make. The code below isn't working for me. and I want to accept any number no matter the size with pow -f 2 2. I was working out... (16 Replies)
Discussion started by: Errigour
16 Replies

10. 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
IO::Digest(3)						User Contributed Perl Documentation					     IO::Digest(3)

NAME
IO::Digest - Calculate digests while reading or writing SYNOPSIS
use IO::Digest; # Get a Digest::MD5 object that takes input while $fh being written or read my $fh; my $iod = IO::Digest->new ($fh, 'MD5'); print $fh "fooo"; print $iod->hexdigest DESCRIPTION
This module allows you to calculate digests while reading or writing file handles. This avoids the case you need to reread the same content to compute the digests after written a file. TEST COVERAGE
----------------------------------- ------ ------ ------ ------ ------ ------ File stmt branch cond sub time total ----------------------------------- ------ ------ ------ ------ ------ ------ blib/lib/IO/Digest.pm 100.0 n/a n/a 100.0 100.0 100.0 Total 100.0 n/a n/a 100.0 100.0 100.0 ----------------------------------- ------ ------ ------ ------ ------ ------ AUTHORS
Chia-liang Kao <clkao@clkao.org> COPYRIGHT
Copyright 2004 by Chia-liang Kao <clkao@clkao.org>. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See <http://www.perl.com/perl/misc/Artistic.html> perl v5.18.2 2013-02-16 IO::Digest(3)
All times are GMT -4. The time now is 01:38 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy