Someone sneaks into my cubicle while I’m at lunch and takes candy out of my desk. Petty, but stupid too. I want to set up something so that my webcam on my iMac takes photos every few seconds while I’m away from my desk so I can catch the culprit! How can I do that in a stealthy manner while the computer is otherwise asleep?
- Home
- / Linux Shell Script Programming (Page 2)
Linux Shell Script Programming
Secretly capture screenshots on my Mac?
When I used to work on a Linux system, there was a utility we had that would let me take screen captures every 30 seconds while my computer was otherwise unattended, as a way to see if anyone else was using it or not. I liked it. Now I’d like to do the same on my Mac system. Possible?
Parsing “id” strings in a Shell Script?
Hello Dave. I need a Bash shell script that creates a directories with the group names automatically when user logs in to the system, in their home directory.
For example, user “sandy” might have the following set of groups from the ‘id’ command:
uid=10002(sandy) gid=119(rtkit) groups=119(rtkit),10001(admin),10003(pr007drdl)
and the directories “rtkit”, “admin” and “pr007drdl” should then be created. How do I do it?
Copy and Paste from the Mac OS X Command Line?
I am constantly running commands in Terminal.app on my MacBook and then copying and pasting the results into email messages or documents. Yes, I’m a tech writer. What I’m wondering is if there’s any way to actually copy and past into the Mac system wide copy/paste buffer directly from the command line?
Script to test line lengths for Twitter compatibility?
I’ve been tasked with writing a series of tweets for a Black Friday marketing campaign and am finding it a bit tricky because I don’t know how to easily check line length for a long series of lines. I’m on a Mac and can get around in Terminal. Is there some script you can share with me to check this, Dave?
Shell script to convert lowercase to title case?
As part of a project I’m working on, I find myself deep in a Linux shell script, needing to have a subroutine that converts a sentence of all lowercase to title case. You know, from “this is a test case” to “This is a Test Case”. Not every word, just the right ones. Doable?
Can I script renaming files based on an XML data map?
I have a folder full of files which are named with four digits and a file extension e.g. 0312.file and an XML-file describing the contents of these files. I am trying to do a shell scipt that will create folders and rename these files according to the xml, but I don’t know how?
This is a template of what the xml looks like:
<section label=”AA. category”>
<children label=”topic” source=”AABB.file” />
</ section>
The script should represent the categories as folders containing the related topics, which should be represented as filenames.
Test for valid numbers in a Bash shell script?
In a different discussion on this site [see Redirecting input in a shell script] a visitor commented that “I was too busy trying to make sure the above post made sense that I forgot to ask for help. If you can, please post examples of how I can make the second argument a requirement and evaluate if it is a number. Thank you in advance!”
OVERWHELMED BY TECH?
You are not alone! Join our weekly newsletter to build up your confidence and capabilities in solving everyday technology problemss. Learn to master all your tech and gadgets!
“I love your newsletter. Keep up the very good work!”
– Julie Redd
“Thank you, Dave. I really do appreciate your updates.”
– Peter Kimball
