Recent questions tagged Linux

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linux - How to toggle CR/LF in gnu screen?

I'm using screen to read the text from a serial console. The problem is the output seems to only have newline ... any patch to fix this issue? See Question&Answers more detail:os...

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

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linux - wget: don't follow redirects

How do I prevent wget from following redirects? See Question&Answers more detail:os...

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

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linux - How to copy and edit files in Android shell?

The Android shell does not have the cp command. Android shell also has no sed or grep or vi. I have no adb daemon ... to be "PATH=/mnt/asec") ? See Question&Answers more detail:os...

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

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linux - setup cron tab to specific time of during weekdays

I am trying to setup a cron job on a Ubuntu server. We want the cron job to run the script at certain ... What should I do for the weekdays? See Question&Answers more detail:os...

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

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linux - How to Read/Write UTF8 text files in C?

i am trying to read UTF8 text from a text file, and then print some of it to another file. I am using ... works for English characters for now. See Question&Answers more detail:os...

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

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633 views

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linux - How to find the callers and callee of a function in C code in vi/vim?

I want to know how can I easily click (or maybe use some easy shortcuts) on a function name and find all ... (pgdir, USERTOP-PGSIZE, USERTOP); See Question&Answers more detail:os...

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

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linux - What makes a kernel/OS real-time?

I was reading this article, but my question is on a generic level, I was thinking along the following lines ... something, please correct me. See Question&Answers more detail:os...

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

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linux - Accessing the GPIO (of a raspberry pi) without ``sudo``

This question might not be specific to the raspberry pi, of course. Also, I'm relatively new to Linux. I want ... ish, so please bear with me. See Question&Answers more detail:os...

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

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linux - How to setup and clone a remote git repo on Windows?

Anybody know how to checkout, clone, or fetch project or code from a git remote repository on a Windows server? ... me how to setup and clone? See Question&Answers more detail:os...

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

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linux - Batch rename files

I want to batch re-name a number of files in a directory so that the preceding number and hypen are stripped ... do this with a linux command? See Question&Answers more detail:os...

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

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746 views

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linux - How do I tell cmake I want my project to link libraries statically?

I'm trying to build an OpenCV-based project using CMake, running on Linux. So far my CMakeLists.txt files ... I link with static libraries? See Question&Answers more detail:os...

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

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831 views

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linux - Unix command to escape spaces

I am new to shell script. Can someone help me with command to escape the space with " ". I have a ... somebody suggest the right command !! See Question&Answers more detail:os...

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

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607 views

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linux - Where does printk() print to?

Just a quick question on printk() function at the kernel level, if I call this where will the message be ... ) function it would be great! See Question&Answers more detail:os...

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

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805 views

1 answer

linux - Exclude an alias from virtualhost proxypass

I've following virtual host configuration. The desired result is: If someone requests http://test.myserver.com ... :8069/ </VirtualHost> See Question&Answers more detail:os...

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

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linux kernel - iptables v1.4.14: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)

I'm trying to set iptable rules, and I got following error message when I use iptable : iptables v1.4.14: can't ... can I do to solve this ? See Question&Answers more detail:os...

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

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761 views

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linux - How can I find files that only have certain permission for owner?

I would like to find files only by a certain user's permission. For example, if I want to find a file ... permission of root and other users. See Question&Answers more detail:os...

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

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739 views

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linux - find string inside a gzipped file in a folder

My current problem is that I have around 10 folders, which contain gzipped files (around on an average 5 each). ... | grep <pattern>; done; See Question&Answers more detail:os...

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

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565 views

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linux - Neo4j WARNING: Max 1024 open files allowed, minimum of 40 000 recommended. See the Neo4j manual

I installed Neo4j on Ubuntu 12.04 using these instructions: http://www.neo4j.org/download/linux wget -O - http:// ... to create it's PID 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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951 views

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linux - how to find the target file's full(absolute path) of the symbolic link or soft link in python

when i give ls -l /etc/fonts/conf.d/70-yes-bitmaps.conf lrwxrwxrwx <snip> /etc/fonts/conf.d/70-yes- ... the symbolic link or soft link 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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798 views

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linux - What is the concept of vruntime in CFS

I have been reading about Linux Kernel and CFS scheduler in the kernel. I came across vruntime (virtual ... vruntime and *min_vruntime*? See Question&Answers more detail:os...

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

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763 views

1 answer

linux - Trace of executed programs called by a Bash script

A script is misbehaving. I need to know who calls that script, and who calls the calling script, and so on, ... that is initiated by my script. See Question&Answers more detail:os...

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

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689 views

1 answer

linux - Move files to directories based on extension

I am new to Linux. I am trying to write a shell script which will move files to certain folders based on their ... but they don't seem to work. See Question&Answers more detail:os...

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

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691 views

1 answer

linux - How to set a global nofile limit to avoid "many open files" error?

I have a websocket service. it's strage that have error:"too many open files", but i have set the system ... every upstart script which i need. See Question&Answers more detail:os...

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

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799 views

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linux - How to completely destroy a socket connection in C

I have made a chat client in linux using socket, and i wish to destroy the connection completely. Following is the ... . How can I do it? See Question&Answers more detail:os...

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

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953 views

1 answer

linux - unshare --pid /bin/bash - fork cannot allocate memory

I'm experimenting with linux namespaces. Specifically the pid namespace. I thought I'd test something out with bash ... Why is it doing 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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860 views

1 answer

linux - Parallel download using Curl command line utility

I want to download some pages from a website and I did it successfully using curl but I was wondering if somehow ... of the page under process. See Question&Answers more detail:os...

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

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688 views

1 answer

linux - Redirect standard input dynamically in a bash script

I was trying to do this to decide whether to redirect stdin to a file or not: [ ...some condition here.. ... that's simpler and more efficient? See Question&Answers more detail:os...

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

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831 views

1 answer

linux - Remove a specific character using awk or sed

I have a command output from which I want to remove the double quotes ". Command: strings -a libAddressDoctor5. ... characters with awk or sed. See Question&Answers more detail:os...

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

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