Okay, so today I wanted to mess around with something I saw online – chaining console commands together. Sounds kinda neat, right? I figured it could be useful for automating some tasks, maybe making my workflow a bit smoother. So, I dove in.
First, I needed to remember the basics. How do you even chain commands? I vaguely remembered something about using symbols like and , but I wasn’t 100% sure. So, a quick search, and I found out that:
- means “run the next command only if the previous one was successful”.
- means “run the next command only if the previous one failed”.
Alright, cool. Now I had the building blocks. I started simple, just trying to chain together a couple of basic commands in my terminal. I figured I’d make a new directory, then move into it, all in one line.
So, I typed out:
mkdir test_directory && cd test_directory
I hit Enter, and… bam! It worked! I saw the new directory pop up, and my terminal prompt showed I was now inside it. Success! Felt pretty good, like I’d just learned a tiny magic trick.
Then, I thought I’d try the operator. I wanted to see if I could make it echo a message if a command failed. So, I tried to move into a directory that didn’t exist, followed by an echo command:
cd doesnt_exist echo "Oops, that directory doesn't exist!"
And, yep, it worked exactly as expected. I got the “Oops” message, because, well, the directory didn’t exist. Pretty neat, huh?
Next, I decided to try a more practical example. I have a list of files to change its file’s type name. And I use command to change its file name. Use `&&` let them become a chained command.
I fire it up:
mv * * && mv * *
Worked perfectly. I realized that use `&&` is useful.
So, that’s my little adventure with chained console commands. Nothing groundbreaking, but it’s definitely something I can see myself using more often. It’s all about those little efficiencies, right? Makes you feel like a bit of a power user, too.
