Work the Shell - Simple Scripts to Sophisticated HTML Forms
Let's look at a more interesting subset, instead, by adding a -c flag to have it output just a count of how many films match the specified criteria, you've given the command instead.
To do that, we don't need to go page by page, but just identify and extract the value from the match count on the page. For the comedies with “funny” in the title, the line on the page looks like this: “< Prev | 1 - 20 of 37 | Next 17 >”.
What we need to do is crack the HTML and look at the source to the link to “next 17” and see if it's extractable (is that a word?):
./findmovie.sh -d -g com funny | grep -i "next 17" | head -1 <td align=right><font face=arial size="-2"><nobr> ↪< Prev | <b>1 - 20</b> ↪ of <b>37</b> | <span ↪class="yperlink"><ai href="/mv/search?p=funny&yr=all ↪&gen=com\&syn_match=all&adv=y&type=feature ↪&n=17&b=21&h=s">Next 17</a> > ↪ </nobr></span></span></font></td></tr>
Well that's ugly. You'd think Yahoo didn't want to make this easy or something! It turns out though that this is a pretty tricky task, because if there are no matches, the link doesn't show up, and instead you see “Sorry, no matches were found”. If there are less than 20 matches, you see “Next >”, but it's not a clickable link, so it's not going to be so easy!
Given that I'm out of space, let's defer this topic until next month. Meanwhile, look at the source to various searches yourself and see if anything comes to mind. Otherwise, it'll be brute force!
Dave Taylor has been hacking shell scripts for a really long time, 30 years. He's the author of the popular Wicked Cool Shell Scripts and can be found on Twitter as @DaveTaylor and more generally at www.DaveTaylorOnline.com.
Dave Taylor has been hacking shell scripts for over thirty years. Really. He's the author of the popular "Wicked Cool Shell Scripts" and can be found on Twitter as @DaveTaylor and more generally at www.DaveTaylorOnline.com.
Fast/Flexible Linux OS Recovery
On Demand Now
In this live one-hour webinar, learn how to enhance your existing backup strategies for complete disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible full-system recovery solution for UNIX and Linux systems.
Join Linux Journal's Shawn Powers and David Huffman, President/CEO, Storix, Inc.
Free to Linux Journal readers.Register Now!
- Google's Abacus Project: It's All about Trust
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Seeing Red and Getting Sleep
- Fancy Tricks for Changing Numeric Base
- Secure Desktops with Qubes: Introduction
- Working with Command Arguments
- Secure Desktops with Qubes: Installation
- CentOS 6.8 Released
- Linux Mint 18
- The Italian Army Switches to LibreOffice
Until recently, IBM’s Power Platform was looked upon as being the system that hosted IBM’s flavor of UNIX and proprietary operating system called IBM i. These servers often are found in medium-size businesses running ERP, CRM and financials for on-premise customers. By enabling the Power platform to run the Linux OS, IBM now has positioned Power to be the platform of choice for those already running Linux that are facing scalability issues, especially customers looking at analytics, big data or cloud computing.
￼Running Linux on IBM’s Power hardware offers some obvious benefits, including improved processing speed and memory bandwidth, inherent security, and simpler deployment and management. But if you look beyond the impressive architecture, you’ll also find an open ecosystem that has given rise to a strong, innovative community, as well as an inventory of system and network management applications that really help leverage the benefits offered by running Linux on Power.Get the Guide