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Questions tagged [linux]

LINUX QUESTIONS MUST BE PROGRAMMING RELATED. Use this tag only if your question relates to programming using Linux APIs or Linux-specific behavior, not just because you happen to run your code on Linux. If you need Linux support you can try http://unix.stackexchange.com or the specific Linux distribution's Stack Exchange site like http://askubuntu.com or http://elementaryos.stackexchange.com/

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io.h not found CLion in Ubuntu 20.04

I am trying to run a c++ code however, io.h is not found. 'io.h' file not found It is shown as #include <io.h> Additionally, I am getting a bunch of weird problems (for a code that is rather &...
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Cursor spins on UI in a environment Linux and Real VNC

A application is running in a Linux box. I use Real VNC Viewer to remote access the Linux box. When a dialog box pops up on the top of the application's main window, I move the cursor to the area ...
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21 views

“DROP DATABASE cannot run inside a transaction block”

I have the following script I am trying to run using psql: DROP DATABASE if exists testdb; DROP ROLE if exists testuser; CREATE USER testuser; GRANT testuser to postgres; CREATE DATABASE testdb ...
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18 views

Posix timezone string to Olson string

We have an embedded Linux system where the user needs to be able to permanently set the system's timezone by supplying a POSIX string (e.g. WEuropeStandardTime-1DaylightTime,M3.5.0,M10.5.0/3). The ...
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16 views

How to save the last output in variable when hit KeyboardInterrupt subprocess

I am completely new to the subprocess module. And I was trying to automate the deauthentication attack commands. When I run airodump-ng wlan0mon as you know it looks for the APs nearby and the ...
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14 views

Mouse Input for nasm x86_64

I have written a basic nasm program that opens the /dev/input/mice file and then outputs to the terminal change of x value relatively. I want make some "methods" that will allow user to get ...
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22 views

How can I solve this “Segmentation failure” in PHP when I generate a large file? [duplicate]

I have read a lot about this error in different forums but still cannot find a solution My productive server currently has: Apache: 2.4.25 PHP: 5.6.40 Using the PHPSpreadsheet library in version 1.8.2,...
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34 views

Python subprocess.Popen Unexpected results running ssh

This is running Python 2.7.5, on a CentOS Linux release 7.6.1810 (Core) system. I do not have a lot of experience with Python. But I have looked at a number of previous questions/examples and cannot ...
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19 views

How to distribute outgoing traffic to two interfaces equally on linux using ip route? [closed]

I have set up an IPSec VPN with two tunnels. Tunnel1 has interface vti1 and Tunnel2 has vti2. Now when i am sending traffic it is going through only tunnel1 even though i have done some static ...
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33 views

Code execution allocates all memory until it is killed by OOM (linux) probably at code initialization. Ideas for debugging such a problem?

I am having a really weird problem with some code. I am trying to debug a C++/Fortran code I compiled on our linux cluster. When I run it, I do not get ANY output on the screen and the code crashes. I ...
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11 views

Ping command: increasing the mtu value to 2000 [closed]

Can someone tell a single command to test whether we can send a single packet with mtu 2000 to let's say'www.google.com'. And if it didn't work what could be the reasons for that assuming the client, ...
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10 views

XFS I/O Error Detected. Shutting down filesystem because Internal error XFS_WANT_CORRUPTED_GOTO

I have a problem in my xfs disks and goes to shoutdown. i have a lot free inodes but this error like it cannot free inode. kernel logs: XFS (sdc): Internal error XFS_WANT_CORRUPTED_GOTO at line 3156 ...
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13 views

mail command to display HTML file and Attachment of a csv file

I'm trying to get a report which has an attachment and a HTML representation, When I'm trying with the Sendmail command I'm getting the HTML output but not able to attache the CSV file, when using the ...
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13 views

brew, pipenv, and pyenv command not working after installing conda (ubuntu)

I installed brew, pipenv, poetry, and pyenv using this then anaconda with this link. Things were going all fine and I could use brew, pipenv, poetry, and pyenv with no problems, but this all changed ...
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23 views

Snooping on pseudo terminal

I want to write a program that can capture the input/output of a pseudo terminal without it affecting the original terminal. It can be likened to pointing script to a /dev/pts/<n>. Use Case: A ...

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