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Full Discussion: Working with grep and Bash
Top Forums Shell Programming and Scripting Working with grep and Bash Post 302770517 by Njzangel on Saturday 16th of February 2013 09:05:38 PM
Old 02-16-2013
Working with grep and Bash

Hi, I am currently working on a Bash shell script that
- Downloads a webpage, in this case youtube.com
- Extracts Number of views, Extracts Title of video, Extracts User who made it, and lastly Duration. Then I have to Out put this into columns.

To me this sounds like crazyness. I'm very new to bash and even using grep/cut commands So far this is all I got. I decided to pass all my commands to variables to try and make a table then output but its very messy. What I am trying to do is

make tables for

Views | Title | User | Time

0000 blah me 0:10

etc but I have no idea how to cut out information from the html and organize it.
Code:
#! /bin/bash

wget -O Link.html youtube.com

echo [Views]            [User]          

x=$(grep views Link.html | grep -v 'div' | cut -d ' ' -f5 | sort -n | tr -d ',')
y=$(grep title Link.html | grep -v 'div' | grep -v span |cut -d '>' -f1 | grep -v class | grep -v '<')


IFS="'echo'"
for line in $x
        do
                echo $line
        done

#echo $y
~                                                                                         
~                                                                                         
~                                                                                         
~

Its probably really messy but I'm lost on how to extract the correct titles which are usually in the " " ex. title="Harlem Shake (Matt and Kim Edition)"

Also I have no idea how to organize or sort it so it matches the correct amount of views. I'm not looking for the answer I'm looking for the solution. So I can do the same for the other parts of this sh myself.

Once again I am very new to this stuff lol.

The best can get are the views to show up organized. The titles are all over the place.

Last edited by Njzangel; 02-16-2013 at 10:10 PM..
 

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ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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