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Full Discussion: problem with output.
Homework and Emergencies Homework & Coursework Questions problem with output. Post 302415947 by brooksie91 on Friday 23rd of April 2010 08:41:13 PM
Old 04-23-2010
problem with output.
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:

something is wrong with my output

2. Relevant commands, code, scripts, algorithms:

it has something to do with the expr command, i don't know what is wrong though.

3. The attempts at a solution (include all code and scripts):

Code:
#!/bin/sh

#James Brooks
#COP3353 - Assignment 4
#4/23/10

file=$1
directories=0
files=0
rfiles=0
xfiles=0
wfiles=0

if [ $# -ne  1 ]
   then
        echo "Usage: assignment4.sh <directory_name>"
exit
fi


if [ ! -d $file ]
then
        echo "$file: is not a directory"
exit
fi
        

for filename in $file/*
     do
        if [ -r $filename ];
            then 
             rfiles = `expr $rfiles + 1`   
        fi

        if [ -x $filename ]
           then
                xfiles = `expr $xfiles + 1`
        fi
 if [ -w $filename ] 
           then  
                wfiles = `expr $wfiles + 1`
        fi

        if [ -d $filename ]
           then
                directories = `expr $directories + 1`
        fi
        if [ -f $filename ] 
           then  
                files = `expr $files + 1`  
        fi
done
        
echo "Total number of directories: $directories"
echo "Total number of files: $files"
echo "Total number of readable items: $rfiles"
echo "Total number of writable items: $wfiles"
echo "Total number of executable items: $xfiles"

********************************************************
my output is just a whole bunch of this:

assignment4.sh: line 32: rfiles: command not found
assignment4.sh: line 37: xfiles: command not found
assignment4.sh: line 42: wfiles: command not found
assignment4.sh: line 47: directories: command not found
assignment4.sh: line 32: rfiles: command not found
assignment4.sh: line 37: xfiles: command not found
assignment4.sh: line 42: wfiles: command not found
assignment4.sh: line 52: files: command not found
assignment4.sh: line 32: rfiles: command not found
assignment4.sh: line 42: wfiles: command not found
assignment4.sh: line 52: files: command not found
assignment4.sh: line 32: rfiles: command not found
assignment4.sh: line 42: wfiles: command not found
assignment4.sh: line 52: files: command not found
assignment4.sh: line 32: rfiles: command not found
assignment4.sh: line 37: xfiles: command not found
assignment4.sh: line 42: wfiles: command not found
assignment4.sh: line 52: files: command not found
assignment4.sh: line 32: rfiles: command not found
assignment4.sh: line 42: wfiles: command not found
assignment4.sh: line 52: files: command not found


4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Florida State, Myers, COP3353, Assignment 4

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
Last edited by Scott; 04-23-2010 at 09:47 PM.. Reason: Added code tags
 

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LEARN ABOUT CENTOS

browser::open

Browser::Open(3)					User Contributed Perl Documentation					  Browser::Open(3)

NAME

       Browser::Open - open a browser in a given URL

VERSION

       version 0.03

SYNOPSIS

	   use Browser::Open qw( open_browser );

	   ### Try commands specific to the current Operating System
	   my $ok = open_browser($url);
	   # ! defined($ok): no recognized command found
	   # $ok == 0: command found and executed
	   # $ok != 0: command found, error while executing

	   ### Try all known commands
	   my $ok = open_browser($url, 1);

DESCRIPTION

       The functions optionaly exported by this module allows you to open URLs in the user browser.

       A set of known commands per OS-name is tested for presence, and the first one found is executed. With an optional parameter, all known
       commands are checked.

       The "open_browser" uses the "system()" function to execute the command. If you want more control, you can get the command with the
       "open_browser_cmd" or "open_browser_cmd_all" functions and then use whatever method you want to execute it.

API

       All functions are not exported by default. You must ask for them explicitly.

   open_browser
	   my $ok = open_browser($url, $all);

       Find an appropriate command and executes it with your $url. If $all is false, the default, only commands that match the current OS will be
       tested. If true, all known commands will be tested.

       If no command was found, returns "undef".

       If a command is found, returns the exit code of the execution attempt, 0 for success. See the "system()" for more information about this
       exit code.

       If no $url is given, an exception will be thrown: "Missing required parameter $url".

   open_browser_cmd
	   my $cmd = open_browser_cmd();

       Returns the best command found to open a URL on your system.

       If no command was found, returns "undef".

   open_browser_cmd_all
	   my $cmd = open_browser_cmd_all();

       Returns the first command found to open a URL.

       If no command was found, returns "undef".

AUTHOR

       Pedro Melo, "<melo at cpan.org>"

COPYRIGHT &; LICENSE
       Copyright 2009 Pedro Melo.

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

perl v5.16.3							    2012-03-09							  Browser::Open(3)
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