Unanswered Questions
2,769 questions with no upvoted or accepted answers
7
votes
1
answer
4k
views
anaconda Qt vs system Qt
The anaconda python framework includes its own Qt shared libraries, among other ones. Because of the nature of the framework, it must appear first in the PATH environment variable so its python ...
CommunityBot
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6
votes
0
answers
4k
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MPI program causes "invalid MIT-magic-cookie-1 key" warning to show
I'm setting up a new development environment that requires high performance computing. I installed mpi and openmpi on this new machine (Ubuntu 20.04), and I wrote the following code in python as a ...
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6
votes
0
answers
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Execute script on external keyboard connection
EDIT: This is NOT a duplicate because the linked question is about external USB drives, not keyboards. The suggested command udevadm info -a -n sdb does nothing in helping to find the corresponding ...
- 77.8k
5
votes
1
answer
697
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bash + how to avoiding duplicate entries in authorized_keys (ssh) in bash
Popular methods of adding an ssh public key to a remote host’s authorized_keys file include using the ssh-copy-id command, and using bash operators such as >> to append to the file.
An issue ...
- 4,192
5
votes
0
answers
600
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Is job-control really meant to be supported in subshells and scripts?
Small premise
I use subshells quite often to perform operations that involve changing the Shell Execution Environment, so as not to affect the main shell. I do it often from an interactive shell, and ...
- 5,573
5
votes
1
answer
584
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How to create a real copy of file descriptor stdout and stderr without using unbuffer / script / tee just with bash built-ins?
My goal is to duplicate, redirect all output (stdout and stderr) of an
application (apt-get) to a file while retaining the usual behavior of
the application (apt-get), stdout and stderr.
How to ...
- 7,393
5
votes
0
answers
2k
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Launch background process from sh and close the terminal
How can this be achieved in sh (not bash!)?
nohup sh -c 'helper-bcpy.sh "$0" "$1" "$2" "$3"' "$num" "$full_path" "$log" "$log_finished" >/dev/null &
I would have expected it to send the ...
CommunityBot
- 1
5
votes
1
answer
2k
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Apart from USR1 and USR2, which signals can I safely use for custom interrupting behavior? (in python)
I have a complex application with USR1 and USR2 already defined as having a well-defined and not replaceable purpose.
There are tons of different signals in linux. Might there be another one (maybe a ...
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5
votes
1
answer
2k
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TOR hidden service not always accessible through cURL. Takes multiple tries
When I try to access a hidden service on TOR using cURL, for some reason I'm not getting access to the site 100% of the time. Many times it returns "curl: (7) Can't complete SOCKS5 connection to 0.0.0....
CommunityBot
- 1
5
votes
1
answer
4k
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Run git pull from a shell start-up script
I have Raspberry Pi that loads a shell script on start up.
This script runs a python script, boot_camera.py, which is found in a repository.
I Have a server which sends the Raspberry Pi a command ...
CommunityBot
- 1
5
votes
2
answers
2k
views
Bash Script -- ffmpeg not being invoked as expected
I'm working on a bash script to convert my music library to ogg* but executing the right command is somehow eluding me. This is the line that should accomplish it:
ffmpeg -i "${file}" -f flac pipe:1 |...
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5
votes
1
answer
479
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How to overwrite file residing on ESP at Linux boot
I have a 64-bit dual-boot system running Windows 7 and Linux Mint 17 Cinnamon. I use rEFInd to graphically choose which system to boot.
A little bit about rEFInd:
It is an EFI bootloader.
It uses ...
- 57.9k
5
votes
0
answers
4k
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FreeBSD: How to start a python script as daemon?
I'm facing an issue with a python file that I'd like to start as a service.
I named my service ocrserver and the script I want to start is in /home/administrator/ocr/ocrserver/init.py with some ...
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5
votes
0
answers
347
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Enable sqlite FTS Enhanced Query Syntax in python in RHEL6?
SQLite's full text search engine offers a simple query syntax (with AND and OR operators and -term for negation), as well as an enhanced query syntax which also allows parenthesis and NEAR — as well ...
- 41.3k
5
votes
2
answers
776
views
dash maximum variable length under systemd
I have a shell script that uses a single variable as an associative array (one KEY=VALUE per line).
Throughout the execution of the script, the variable is manipulated to add, remove or modify ...
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