I'm trying to run the beginning of a script that was sent to me:
function [ FList ] = ReadFileNames(DataFolder)
DirContents=dir(DataFolder);
FList=[];
DataFolder is the name of the folder in which all my data is held. When I click the Run button I receive:
ReadFileNames(DataFolder)
Unrecognized function or variable 'DataFolder'.
And I'm not sure why?
Any help is much appreciated. Thank you.
When you simply click Run, it's the same as running the command
ReadFileNames();
Note there are no inputs here, but your code expects (and requires) the input DataFolder.
So you have to do one of two things
Click the drop-down by the Run button, edit the type code to run prompt and add your folder. Then you can continue to click the Run button to execute this again. Note that once you've edited the default Run command for a function, the Run button icon changes slightly to reflect it:
A more common, and arguably more clear, way to run your function would just be to call it from the Command Window by typing ReadFileNames('your/folder/path/here'); (and hitting Enter to run).
I'm assuming it's like Python's import statement, but I'd like a quick answer, since I'm in the middle of an introduction class right now.
This was the closest I got, but it didn't seem to match the question, as it shows how to run an R Script from the system CLI, not the blue RStudio > prompt:
Run an R-script from command line and store results in subdirectory
Short Answer using source() function
Once you download, install, and open the RStudio, you'll see a part in the lower left with blue greater than symbols >.
In the part of RStudio's GUI with the blue >, enter the following
> setwd('/folder/where/the/file/is/')
> source('file_name')`
...output, if any, appears below...
Example:
Let's assume I have a file at /home/myusername/prj/r/learn_r/insurance_data.r that I want to run.
I would start up RStudio, and enter the following in the little window it has labeled Console:
Annoyingly long answer with screenshots using source() function
Well, it turned out to be much simpler than I expected to run this from RStudio's built-in console. I was surprised that this had not already been asked about RStudio, before. If it has, I guess I'll have a burned question.
Anyway, a little trial and error showed me how to do this:
Yay, output has appeared below.
Make sure to set your working directory, first.
I did this as follows from inside RStudio 1.0.143 on my Ubuntu 16.04 LTS environment:
setwd("~/proj/r/learn_r")
Next, you can enter help(source), you can search for the syntax of the source() function, and you can just type it in to the RStudio console for a prompt:
If you want to run a specific line from the R script, put the cursor somewhere in the line and press command+enter (on other pc I think is ctrl+enter). If you want to run the whole script or some parts, select the part and command+enter.
I'm using a PHP script which expects user input from a command like fgets(STDIN). The problem is it no longer works in the newest version of PHPStorm (10).
The same works when I run it directly (without debugger enabled) and anything I enter in the console is sent to the script (on direct run).
But during a debug session, when I try to input text at the script's prompt, it does not go to the script. My best guess is that the new REPL feature is overriding user input in console during debugging. I say this because pressing the UP/DOWN arrows opens up a popup with all PHP function names.
It used to work correctly with last version.
How can I send user input to my PHP script with this new version? Am I missing something here?
I'm not sure if this is the same thing, but I was running into this same problem, and I was able to get it working by deselecting the "Use Console Input" checkbox in the PHPStorm Console.
John's answer is perfect.
I want to mention that the Use Console Input is a tiny icon in sidebar of the debug console. I provide you by this image
I'm trying to build a small expect script to reboot my Cisco VCS devices. However once logging into the device it doesn't have any prompting characters so I'm unsure how to initialise a send request
Example Prompt:
So far I tried
expect "OK/r"
send "command"
expect "OK/r/r"
send "command"
experimented with timeout but unsure how it works.
I also tried the autoexpect tool and it showed a weird character [?1034h" at the prompt which I tried including.
Any help would be appreciated
I would think you should be able to expect the OK plus one or both of newline or carriage return. But you need backslashes for that, not forward ones. I would try "OK\r" or "OK\r\n".
Here's what you need to do: include expect_internal 1 somewhere near the top of your script, then run it again. Expect will give you a ton of information on what it is and it is not matching. That should show you what it's receiving, and you will be able to craft your expect statement accordingly.
If you're unsure, edit your question to include the debugging output and I will try to help.
Does anyone know of a way to save the console.log output in Chrome to a file? Or how to copy the text out of the console?
Say you are running a few hours of functional tests and you've got thousands of lines of console.log output in Chrome. How do you save it or export it?
Good news
Chrome dev tools now allows you to save the console output to a file natively
Open the console
Right-click
Select "save as.."
Chrome Developer instructions here.
I needed to do the same thing and this is the solution I found:
Enable logging from the command line using the flags:
--enable-logging --v=1
This logs everything Chrome does internally, but it also logs all the console.log() messages as well. The log file is called chrome_debug.log and is located in the User Data Directory which can be overridden by supplying --user-data-dir=PATH (more info here).
Filter the log file you get for lines with CONSOLE(\d+).
Note that console logs do not appear with --incognito.
I have found a great and easy way for this.
In the console - right click on the console logged object
Click on 'Store as global variable'
See the name of the new variable - e.g. it is variableName1
Type in the console: JSON.stringify(variableName1)
Copy the variable string content: e.g. {"a":1,"b":2,"c":3}
Go to some JSON online editor:
e.g. https://jsoneditoronline.org/
There is an open-source javascript plugin that does just that, but for any browser - debugout.js
Debugout.js records and save console.logs so your application can access them. Full disclosure, I wrote it. It formats different types appropriately, can handle nested objects and arrays, and can optionally put a timestamp next to each log. You can also toggle live-logging in one place, and without having to remove all your logging statements.
For better log file (without the Chrome-debug nonsense) use:
--enable-logging --log-level=0
instead of
--v=1 which is just too much info.
It will still provide the errors and warnings like you would typically see in the Chrome console.
update May 18, 2020: Actually, I think this is no longer true. I couldn't find the console messages within whatever this logging level is.
This may or may not be helpful but on Windows you can read the console log using Event Tracing for Windows
http://msdn.microsoft.com/en-us/library/ms751538.aspx
Our integration tests are run in .NET so I use this method to add the console log to our test output. I've made a sample console project to demonstrate here: https://github.com/jkells/chrome-trace
--enable-logging --v=1 doesn't seem to work on the latest version of Chrome.
For Google Chrome Version 84.0.4147.105 and higher,
just right click and click 'Save as' and 'Save'
then, txt file will be saved
A lot of good answers but why not just use JSON.stringify(your_variable) ? Then take the contents via copy and paste (remove outer quotes). I posted this same answer also at: How to save the output of a console.log(object) to a file?
There is another open-source tool which allows you to save all console.log output in a file on your server - JS LogFlush (plug!).
JS LogFlush is an integrated JavaScript logging solution which include:
cross-browser UI-less replacement of console.log - on client side.
log storage system - on server side.
Demo
If you're running an Apache server on your localhost (don't do this on a production server), you can also post the results to a script instead of writing it to console.
So instead of console.log, you can write:
JSONP('http://localhost/save.php', {fn: 'filename.txt', data: json});
Then save.php can do this
<?php
$fn = $_REQUEST['fn'];
$data = $_REQUEST['data'];
file_put_contents("path/$fn", $data);
Right-click directly on the logged value you want to copy
In the right-click menu, select "Store as global variable"
You'll see the value saved as something like "temp1" on the next line in the console
In the console, type copy(temp1) and hit return (replace temp1 with the variable name from the previous step). Now the logged value is copied to your clipboard.
Paste the values to wherever you want
This is especially good as an approach if you don't want to mess with changing flags/settings in Chrome and don't want to deal with JSON stringifying and parsing etc.
Update: I just found this explanation of what I suggested with images that's easier to follow https://scottwhittaker.net/chrome-devtools/2016/02/29/chrome-devtools-copy-object.html
These days it's very easy - right click any item displayed in the console log and select save as and save the whole log output to a file on your computer.
On Linux (at least) you can set CHROME_LOG_FILE in the environment to have chrome write a log of the Console activity to the named file each time it runs. The log is overwritten every time chrome starts. This way, if you have an automated session that runs chrome, you don't have a to change the way chrome is started, and the log is there after the session ends.
export CHROME_LOG_FILE=chrome.log
the other solutions in this thread weren't working on my mac. Here's a logger that saves a string representation intermittently using ajax. use it with console.save instead of console.log
var logFileString="";
var maxLogLength=1024*128;
console.save=function(){
var logArgs={};
for(var i=0; i<arguments.length; i++) logArgs['arg'+i]=arguments[i];
console.log(logArgs);
// keep a string representation of every log
logFileString+=JSON.stringify(logArgs,null,2)+'\n';
// save the string representation when it gets big
if(logFileString.length>maxLogLength){
// send a copy in case race conditions change it mid-save
saveLog(logFileString);
logFileString="";
}
};
depending on what you need, you can save that string or just console.log it and copy and paste. here's an ajax for you in case you want to save it:
function saveLog(data){
// do some ajax stuff with data.
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function(){
if (this.readyState == 4 && this.status == 200) {}
}
xhttp.open("POST", 'saveLog.php', true);
xhttp.send(data);
}
the saveLog.php should append the data to a log file somewhere. I didn't need that part so I'm not including it here. :)
https://www.google.com/search?q=php+append+to+log
This answer might seem specifically related, but specifically for Network Log, you can visit the following link.
The reason I've post this answer is because in my case, the console.log printed a long truncated text so I couldn't get the value from the console. I solved by getting the api response I was printing directly from the network log.
chrome://net-export/
There you may see a similar windows to this, just press the Start Logging to Disk button and that's it:
Create a batch file using below command and save it as ChromeDebug.bat in your desktop.
start chrome --enable-logging --v=1
Close all other Chrome tabs and windows.
Double click ChromeDebug.bat file which will open Chrome and a command prompt with Chrome icon in taskbar.
All the web application logs will be stored in below path.
Run the below path in Run command to open chrome log file
%LocalAppData%\Google\Chrome\User Data\chrome_debug.log