cli

Linux/Unix FAQ: Can you share some find command examples?

Sure. The Unix/Linux find command is very powerful. It can search the entire filesystem to find files and directories according to the search criteria you specify. Besides using the find command to locate files, you can also execute other Linux commands (grep, mv, rm, etc.) on the files and directories you find, which makes find extremely powerful. 

Free Unix and Linux tutorials: Wow, this blog post makes me feel a little old. As I've been working on reorganizing the website lately, I found that I've written more than seventy-five Unix and Linux tutorials. To try to make them easier to find, I created this page to link most of them up.

So, to that end, here is a list of at least 75 free Unix and Linux tutorials I've written. I hope you enjoy them, and I hope they're helpful.

With this site hosted on a virtual server, I'm fighting quite a battle over memory use with the new LAMP architecture in place. As I try to learn more about which applications are using the most memory, I ran into this cool ps command last night that sorts the ps output by memory use, specifically by the rss field:

ps aux --sort:rss

Here's the important output from that command:

Problem

You need to reverse the meaning of a search you're performing with the grep command. For instance, you've been searching for pepperoni pizza orders like this:

grep pepperoni pizza-orders.txt

and now you need to find all orders that don't have pepperoni.

Solution

Just add the -v switch to your grep search command, like this:

Question: What is the command to start a Glassfish server?

Answer: I use the following command to start my Glassfish server:

asadmin start-domain domain1

Although this command refers to starting domain1, at least in my case, it also serves to start the entire Glassfish server. I don't know how this works for multiple domains, but my guess is that if you start any one of your domains, you will start up your Glassfish server.