Recent questions tagged filesystems

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filesystems - Best practice for cross-platform file system manipulations in GAMS

I would like to manipulate the file system from some GAMS code. I am coming to this project mid-stream, ... guaranteed to work cross-platform? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Can one add custom properties to NTFS folders?

I would like to be able to add my own custom data/properties to existing folders on NTFS, so that if ... directory file system object itself. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Create multi level sub folder structure in PHP

I'm trying to create a folder structure which has multi level sub folders. For example, I want to create ... to create this subfolder structure. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Install Node.js on a different hard drive from C to D

I have node and npm with existing packages currently installed to the C drive on Windows. My C drive is an ... doesn't seem to specify drives. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - How can I use an SD card for logging 16-bit data at 48 ksamples/s?

Background My board incorporates an STM32 microcontroller with an SD/MMC card on SPI and samples analogue data at 48 ... of cards SD and MMC. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Get containing path of lua file

I am wondering if there is a way of getting the path to the currently executing lua script file? This is ... a C++ binary via luabind. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - root folder equivalent in windows

Is C drive treated as the root folder in windows when one says folder1folder2 in linux and windows C:folder1folder2. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - write(2)/read(2) atomicity between processes in linux

I have a case where there are two processes which act on the same file - one as a writer and one as a reader. ... 't help for tmpfs (/dev/shm). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Prepending Data to a File

There's no way in any operating system I'm aware of for a program to prepend data to a file efficiently ... this (rather trivial) operation? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Delete files from git index when they are already deleted from fs

I have a bunch of files deleted from the fs and listed as deleted in git status. How can I stage this changes ... running git rm for each file? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - finding out absolute path to a file from python

If I have a file test.py that resides in some directory, how can I find out from test.py what directory it is ... the path of test.py. thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Truncate file at front

A problem I was working on recently got me to wishing that I could lop off the front of a file. Kind ... system? Other, non-technical reasons? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - How to run an function when anything changes in a dir with Python Watchdog?

I'm trying to use watchdog to run a sync script whenever anything changes in a dir (except for one specific file ... ideas how I should do that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Best way to monitor file system changes in linux

I'm looking at building a file system sync utility that monitors file system activity, but it appears that some ... the best but most out-dated See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Why does Docker need a Union File System

What exactly does Docker do with Union File system (like AUFS) to create the containers ? If Docker had to use ... and not a high level answer. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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787 views

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filesystems - Setting Immutable Flag using ioctl() in C

I have attempted to make a script that creates a file and then sets it as immutable similar to the chattr +i ... (fp); } Any help appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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383 views

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filesystems - identify file system format of a disk type in java like ntfs, fat16/32 or ext

Is there any way to find out the file system format of a disk in java? For example for a windows hard drive it ... , for zip drives it is FAT32. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Python: How do I create sequential file names?

I want my program to be able to write files in a sequential format, ie: file1.txt, file2.txt, file3.txt. It ... MUST be created. I'm stumped. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - What is a sparse file and why do we need it?

What is a sparse file and why do we need it? The only thing that I am able to get is that it is a very ... (in gigabytes). How is it efficient ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - What is git's "filemode"?

What is git filemode? For me, it's in every repo's ./git/config file, near the top: [core] filemode = ... which I also don't really understand? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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405 views

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filesystems - NTFS alternate data streams

Today I have seen this weird magic NTFS system supports: each file can have multiple data streams. Basically one ... shed any light on this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

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filesystems - How to list only top level directories in Python?

I want to be able to list only the directories inside some folder. This means I don't want filenames listed, ... level is inefficient/too much. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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449 views

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filesystems - PHP – get the size of a directory

What is the best way to get the size of a directory in PHP? I'm looking for a lightweight way to do ... fopen is disabled for security reasons.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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342 views

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filesystems - Why Windows sets new created file's "created time" property to old time?

Trying this I have found a strange problem: Delete an old file. Create a new file and name it the same as the ... Why does that happen? And how? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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filesystems - Getting an iOS application's "~/Library" path reliably

This Apple tech note: http://developer.apple.com/library/ios/#qa/qa2010/qa1699.html suggests storing "internal ... this path? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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385 views

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filesystems - spark ssc.textFileStream is not streamining any files from directory

I am trying to execute below code using eclipse (with maven conf) with 2 worker and each have 2 core or also ... the directory. Please help me. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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493 views

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filesystems - How to evaluate environment variables into a string in Python?

I have a string representing a path. Because this application is used on Windows, OSX and Linux, we've ... and manually replace the strings? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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591 views

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filesystems - One-liner to recursively list directories in Ruby?

What is the fastest, most optimized, one-liner way to get an array of the directories (excluding files) in Ruby? How about including files? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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