read-write Questions
9
Solved
I tried to use the read/write file descriptor in bash so that I could delete the file that the file descriptor referred to afterward, as such:
F=$(mktemp)
exec 3<> "$F"
rm -f "$F"
echo "Hel...
Verrazano asked 1/10, 2010 at 10:23
16
I have a threading problem in Swift. I have an array with some objects in it. Over a delegate the class gets new objects about every second. After that I have to check if the objects are already in...
Asch asked 28/1, 2015 at 11:26
3
Solved
After looking into my question here, I found that it was caused by a simpler problem.
When I write "\n" to a file, I expect to read in "\n" from the file. This is not always the case in Windows.
...
Forster asked 20/11, 2017 at 3:24
3
Solved
I'm reading a file line by line, and I am trying to make it so that if I get to a line that fits my specific parameters (in my case if it begins with a certain word), that I can overwrite that line...
Tecumseh asked 23/1, 2013 at 0:33
6
Solved
I am developing an android app in which it is required to provide permission for Read and write external storage. My requirement is to select a picture from gallery and use it in my app. Everything...
Dariadarian asked 8/3, 2016 at 4:29
3
Solved
I am fairly new to node.js and i am wondering how to (or even if) i can read and write to a JSON file. I am trying to create an accessible punishment history.
Ideally i would want to be able to cre...
Eastwards asked 3/11, 2020 at 1:37
1
I've got a Google Doc with Google Apps Script script running that multiple people contribute to. There is an onEdit trigger that is fired when people edit the sheet. As I understand it, if one pers...
Pengelly asked 26/8, 2020 at 19:54
6
Solved
From this article.
Another use for declaring a variable as register and const is to inhibit any non-local change of that variable, even trough taking its address and then casting the pointer. Ev...
Lapides asked 3/9, 2012 at 9:37
1
Solved
The short version
How would I go about blocking the access to a file until a specific function that both involves read and write processes to that very file has returned?
The use case
I often...
Volvox asked 12/5, 2014 at 11:23
16
Solved
Is it possible to read and write Word (2003 and 2007) files in PHP without using a COM object?
I know that I can:
$file = fopen('c:\file.doc', 'w+');
fwrite($file, $text);
fclose();
but Word wil...
Fronniah asked 9/10, 2008 at 18:9
1
I'm currently reading and writing .EPS file to manipulate/add metadata (Keywords and Tags) in the file.
PS: File encoding is Windows-1251 or Cp1251 -Russian-
I'm reading EPS file like this: (String...
Katusha asked 11/6, 2019 at 6:10
2
Solved
I'm trying to figure out if it is possible to open a file from a Progressive Web App with the default system application.
The idea is that a PWA would store for offline use some files (e.g. a .doc...
Heliotherapy asked 6/6, 2018 at 9:35
1
I want to get the value of activationCode from database and then store it into a .txt file.
This is what I tried to so far.
Please help! registerController.php
protected function create(array $...
Snafu asked 23/10, 2018 at 4:2
2
The scenario
The user right-clicks a directory in Finder and finds a custom MenuItem. Clicking that Item will tell my app to open up a window where the user can do his work. When he is finished fil...
Silvanus asked 16/5, 2015 at 13:18
1
Solved
I have a list of about 1 million addresses, and a function to find their latitudes and longitudes. Since some of the records are improperly formatted (or for whatever reason), sometimes the functio...
Avar asked 12/7, 2018 at 3:8
2
I would like to know how to easily read and write values from a Fortran namelist file in Python.
Culbreth asked 6/6, 2013 at 9:37
5
I want to add given blocks to an array, and then run all the blocks contained in the array, when requested. I have code similar to this:
class MyArrayBlockClass {
private var blocksArray: Array&l...
Crispation asked 28/2, 2015 at 17:12
3
Solved
I'm reading and writing to a text file. There is an instance where I want to delete the contents of the file (but not the file) as a kind of reset. How can I do this?
if ((dirs) != nil) {
var dir...
Woofer asked 23/8, 2015 at 5:16
2
I'm a teacher. My grade book is a .xlsm file, located in my Google Drive folder. I'm building a web app, also in my Drive folder, that shows the students names arranged according to the seating cha...
Schenck asked 27/5, 2017 at 1:54
8
Solved
Assuming I have a byte b with the binary value of 11111111
How do I for example read a 3 bit integer value starting at the second bit or write a four bit integer value starting at the fifth bit?
Rheumatoid asked 5/8, 2012 at 11:7
4
I am writing a html based app, and want to store and retrieve data from local file. This app will not be hosted on a web server.
Can anyone please help enlighten the topic on how can this be done?...
Hydrophilic asked 19/8, 2012 at 2:53
1
Solved
Background:
I'm developing a database related program, and I need to flush dirty metadata from memory to disk sequentially.
/dev/sda1 is volumn format, so data on /dev/sda1 will be accessed block ...
Pentagram asked 23/9, 2015 at 9:30
4
Solved
As I need to read a file when my app is launched and write it sometimes while using it, I tried to reach it with :
NSString *dataFile = [[NSBundle mainBundle] pathForResource:@"data" ofType:@"txt"...
Tannie asked 18/6, 2012 at 7:37
4
Solved
Is it possible to read and write Word (2003 and 2007) files in Python without using a COM object?
I know that I can:
f = open('c:\file.doc', "w")
f.write(text)
f.close()
but Word will read it as...
Coatee asked 9/10, 2008 at 18:6
1
Solved
I was wanting to ask what the steps are to creating a Lua program that would count the amount of words in a .txt file? I'm only familiar with how to count characters and not strings.
Mechanism asked 18/3, 2015 at 21:53
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