Runs Previous Command with Replace
For some reason most of my typos happen within iTerm, which is kind of funny when you consider most commands are super short. gut push doesn't do what I want, nor does hg ammend or any other command spelled wrong. Then you have to either retype the whole thing or press the up key, place the cursor in the right spot, then update the bad text. Blah.
I recently learned a cool trick for executing the previous command but with a text replacement shortcut:
# `gut push` -- Oooops!
^gut^git # Replaces "gut" with "git" and executes previous command!
# `hg ammend` -- Oooops!
^ammend^amend
No need to retype and no need to fix the text within the entire command. Neat way to save time and get things done!
![How to Create a Twitter Card]()
One of my favorite social APIs was the Open Graph API adopted by Facebook. Adding just a few META tags to each page allowed links to my article to be styled and presented the way I wanted them to, giving me a bit of control...
![From Webcam to Animated GIF: the Secret Behind chat.meatspac.es!]()
My team mate Edna Piranha is not only an awesome hacker; she's also a fantastic philosopher! Communication and online interactions is a subject that has kept her mind busy for a long time, and it has also resulted in a bunch of interesting experimental projects...
![Scroll IFRAMEs on iOS]()
For the longest time, developers were frustrated by elements with overflow not being scrollable within the page of iOS Safari. For my blog it was particularly frustrating because I display my demos in sandboxed IFRAMEs on top of the article itself, so as to not affect my site's...
![Chris Coyier’s Favorite CodePen Demos IV]()
Did you know you can triple-heart things on CodePen? We’ve had that little not-so-hidden feature forever. You can click that little heart button on any Pen (or Project, Collection, or Post) on CodePen to show the creator a little love, but you can click it again...
Really cool trick, David! Hadn’t come across this one yet. I’m the curious type so I just had to know what this is called, and any other details… It looks like after a little research that this is a Bash feature, and it’s called “quick substitution”. Its documented under the “Event Designators” section of Bash documentation:
http://www.gnu.org/software/bash/manual/bashref.html#Event-Designators
The documentation specifies the usage as:
But I just tried it out myself and it looks like it works just fine without the trailing caret character. By the way, it’s probably worth noting that this will only replace the first instance of “string1” in the command, so if you misspelled something twice in the command (seems unlikely, I know) you would have to use:
This works with Zsh too.
Thanks Rose Hosting, good catch!
http://zsh.sourceforge.net/Doc/Release/Expansion.html#Overview
If you use zsh, you can enable auto-correction, so if you type
then it will say
This is a great tip.
P.S. Lately, most of my php/css/js related google searches have been showing your site near the top. I have picked up a lot of new things from your site. Whatever you are doing with SEO and content, it is amazing.
All the best.
PPS. I hope one day your have email newsletters.