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Concatenating Files And Insert New Line In Between Files
...finalfile.txt does not exist before you run the above command.
If you are allowed to use awk you can do:
awk 'FNR==1{print ""}1' *.txt > finalfile.txt
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ssh “permissions are too open” error
... 400 is too low as that makes it non-writable by your own user. 600 is actually recommended as it allows owner read-write not just read.
– jfreak53
Jul 9 '13 at 23:55
8
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How to execute AngularJS controller function on page load?
Currently I have an Angular.js page that allows searching and displays results. User clicks on a search result, then clicks back button. I want the search results to be displayed again but I can't work out how to trigger the search to execute. Here's the detail:
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Get the current user, within an ApiController action, without passing the userID as a parameter
...s have shown that using static properties to access request context causes all kinds of architectural problems. It's convenient at first but it causes soooooo much pain long term.
– Darrel Miller
Aug 28 '18 at 13:44
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How do I programmatically determine if there are uncommitted changes?
...ing git diff once solves the issue (surprisingly enough, git diff does actually change the content of the sandbox, meaning here .git/index)
These timestamp issues can also occur if git is running in docker.
Original answer:
"Programmatically" means never ever rely on porcelain commands.
Always rel...
How to force push a reset to remote repository?
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The message means that you're not allowed to do non-fast-forward push.
Your remote repository has most likely denyNonFastforwards = true in its config. If you change that, git push --force should work.
To change the setting, you need access to the machine w...
Binding arrow keys in JS/jQuery
...n't propagate to them), and at the end of the switch, will return without calling e.preventDefault() if it's any other key than the ones being looked for to not hinder other key usage, and instead of $.ui.keyCode.DOWN it compares to the numbers (MUCH faster).
– Jimbo Jonny
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Can I start the iPhone simulator without “Build and Run”?
...u double-click it (or use the open terminal command), it will run. Incidentally, it's called "iOS Simulator.app" with newer iPhone SDKs.
– Seth
Mar 27 '12 at 22:58
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Show or hide element in React
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React circa 2020
In the onClick callback, call the state hook's setter function to update the state and re-render:
const Search = () => {
const [showResults, setShowResults] = React.useState(false)
const onClick = () => setShowResults(true)
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Do I need to create indexes on foreign keys on Oracle?
...t PostgreSQL - at least at the time of this post - does not do it automatically.
– The Dembinski
Jan 6 '17 at 21:35
Sa...