44 Matching Annotations
  1. Oct 2020
  2. Sep 2020
  3. Aug 2020
  4. May 2020
    1. If you update your pages and push to github, people revisiting the pages who have already got cached copies will not get the new pages without actually cleaning their browser cache. How can a script running in a page determine that it is stale and force an update?
  5. Apr 2020
    1. I had never considered it that in nearly a decade of using GNU find! Thank you for that! It will definitely change the way I think about -prune from now on.
    2. I think this structure is much easier and correlates to the right approach
    3. it isn't actually -prune itself that causes this, by the way. The issue is that the or operator "short-circuits", and or has lower precedence than and. The end result is that if a file called .snapshot is encountered it will match the first -name, -prune will then do nothing (but return true), and then the or returns true since its left-argument was true. The action (eg: -print) is part of its second argument, so it never has a chance to execute.
    4. If all you want to do is print the results you might be used to leaving out the -print action. You generally don't want to do that when using -prune.
    5. which means that it'll also print out the name of the directory you're pruning, which usually isn't what you want. Instead it's better to explicitly specify the -print action if that's what you want
    6. The thing I'd found confusing about -prune is that it's an action (like -print), not a test (like -name). It alters the "to-do" list, but always returns true.
    1. Did you expect the temp directory to get printed? In the last example, we saw the directories ./temp and ./C/temp got printed, but not now. This is the effect of the -print option. By default, the find command prints all the files matching the criteria. However, once the -print option is specified, it will print files only on explicit print instructions. In this find command, -print is associated in the other side of the OR condition, and hence nothing will get printed from the 1st part of the condition.
    2. 12. Same using the wholename option and prune to exclude directory: $ find . -wholename "./temp" -prune -o -perm 644 -print ./area.pm ./C/temp ./C/f2.c find has a switch with the name 'wholename'. Say, in your directory tree, there might be more than one temp directory. The earlier approaches will prune all the temp dierctories. In case, if the requirement is to prune a specific temp directory, then you can give the path of the directory itself. Note: The path specified in the wholename option should be relative to the search path specified, not the absolute path. 
  6. Dec 2019
    1. Using find and cpio is a more unix-y approach in that you let find do the file selection with all the power that it has, and let cpio do the archiving. It is worth learning this simple use of cpio, as you find it easy to solve problems you bang your ahead against when trying tar.
    2. find
  7. Jul 2019
    1. Java program to find IP address
    2. Java program to find even or odd
    3. Java program to find if given year is leap year
    4. Java program to find transpose of a matrix
    5. Java program to find simple interest
    6. Java program to find sum & average of an array
    7. Java program to find circumference of a circle
    8. Java program to find perimeter of a rectangle
    9. Find minimum and maximum values in a java array
    10. Java program to find largest in three numbers using ternary operator
  8. Feb 2019
  9. Jan 2019
    1. o leaving a a longer a trade history on there would be useful is what attracts.
    2. awesome. Maybe like 100 trades back or something because I've run into that same issue on some of the other sites. Even the exchanges themselves, despite being bittrex being such a shitty place to trade, they actually do a good job of leaving, you know, 10 pages of 10 trades each or something on there for you to look. Which is nice because I do find a lot of people or an algorithm will place a really big sell order and an immediate buy right after, at the previous limit. Um, say a sell order for 100 coins and then a one person, one percent of one coin. Or point 01 at the buy order back. So it gets hidden and the candles may show up green. But if you're not looking at the order book, you're going to miss that.
    3. Um, the one thing I did want to see some more of is like under your portfolio, uh, when you're going through the, you know, the rebalancing, the correlation and the optimization, um, would just be some more information about, okay, here's how we did, um, are efficient frontier. Like here's the calculation we used. I know it's one basic calculation, but there are different parameters that people can use in them based on the risk above. So just having more general research on there, just saying, or maybe a link to another page that explains like, here's the calculations that we're using. Here's the portfolio theory, with the correlation index, you know, so setting that up, just showing people some math behind it.
    4. but the order book and the trade history are really important to me.
    5. e benefit. Like I don't have any benefit in blocfolio, like sharing my position size and i know what my position size is, i look at it 10 times a day. I don't see any need for me to put it into blocfolio. I'm mostly concerned with just price data.

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  10. Dec 2018
  11. Nov 2017
    1. find /volume1/Movies /volume1/Music /volume1/Photos "/volume1/Home Videos" "/volume1/Music Videos" -type d -exec chmod 755 {} \;

      recursively changing permissions with find, specifically for directories versus files

  12. May 2015
    1. They provided a safe haven in which educators in critical process could confirm that they were not alone, and through which they could make sense of the changes they were experiencing.