Recent questions tagged Linux

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I need help about managing Hugepages on raspberry pi 4 running raspberry pi OS 64 bit. I did not find much ... is not set Thank you. 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 - Is it possible to download PHP script from a web page with wget?

If I try wget <url> it downloads the resolved page. But I want to download the original script. Is this possible? 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 - Clean server infected with c3284d virus, using search and replace

I'm having an issue with the Notorious c3284d virus. It modifies pretty much all the html/php/js files it ... want to replace it with nothing. 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 use stdin with caption in ImageMagick

My understanding from reading the ImageMagick documentation regarding text, is that the @- notation reads the contents ... a better solution? 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 - Making Python script accessible system wide

Can someone tell me how to make my script callable in any directory? My script simply returns the number of ... installed on Windows and Linux? 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 - Redirect stderr and stdout to separate files in Bash?

I am able to redirect stdout and stderr to separate files using: dir >> out 2>> error or stderror and stdout ... , consolidate files at a time)? 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 - passing a variable from php to bash

I cannot seem to get a variable passed to my bash script from php. $uaddress and $upassword come up empty no matter ... ------ Username: > " 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 - Which segments are affected by a copy-on-write?

My understanding of copy-on-write is that "Everyone has a single, shared copy of the same data until it's ... is this dependent on the OS? 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's the point of using Busybox in a low ram embedded system

I'm working on bringing linux to a custom Cortex-M7 board with 16 Mb of SDRAM and 64 Mb of Flash. The ... ll do my research/testing about 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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linux - WebDriverException: Message: unknown error: cannot process extension #1 from unknown error: CRX verification failed: 3

Given Robot framework with Selenium is ready to execute tests in Chrome And it worked so long time When I execute ... be older driver is there)? 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 - Not able to set LD_LIBRARY_PATH for Java process

I am trying to call my linux executable from shell script. Before calling this executable, I want to set ... whats wrong in the code. 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 - awk and special brackets delimiters

I have data in the following format: .......{INFO1}.....[INFO2].... For awk it should be really simple ... How do I specify {} as delimiters? 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 - get Hard Link Count in Java

I need something to get the hard link count from a file in a solaris10 os in java. parsing ls -l is not an ... API or code to get this info? 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 - Datastax Python cassandra driver build fails on Ubuntu

I was trying to install Datastax Python Cassandra driver on Ubuntu 14.04.5. LTS. Installation succeeds but subsequent ... could be the 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 - Intel CPU Cache Policy

I have a laptop with an Intel(R) Core(TM) i5-2450M CPU @ 2.50GHz processor. I'm on Ubuntu 12.04 ( ... find out such info? Thanks in advance. 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 grep for a pattern in the files in tar archive without filling up disk space

I have a tar archive which is very big ~ 5GB. I want to grep for a pattern on all files (and also ... tar documented? tar xf test.tar $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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linux - Git unable to create file permission denied

I am using Amazon EC2 to host a website which is deployed to the server via git. I used this tutorial previously ... me where I am going wrong? See Question&Answers more detail:os...

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

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880 views

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linux - What is the use of "echo || true"?

Why would anyone want to have a code like echo "something" || true ? I found such a usage on line ... lsb/init-functions finishes with success? See Question&Answers more detail:os...

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

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920 views

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linux - Start application from Matlab

I'm looking for a way to start an application from within Matlab. The thing is, my Matlab script saves some ... the problem, let me know. See Question&Answers more detail:os...

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

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915 views

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linux - Does awk CR LF handling break on cygwin?

On Linux, this runs as expected: $ echo -e "line1 line2"|awk -v RS=" " '/^line/ {print "awk: "$0}' ... so where did the control-M go in cygwin? See Question&Answers more detail:os...

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

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865 views

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linux - How is pthread_join implemented?

I'm a little new to threading, so you'll have to forgive the naiveté of this question. How is ... vastly oversimplifying the process? Cheers! See Question&Answers more detail:os...

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

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845 views

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linux - `exit` inside parentheses doesn't exit script

Here is a simple question. Why does this not behave the way I think it would: (echo "Test 1"; exit) && ... for some reason, my question is why? See Question&Answers more detail:os...

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

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817 views

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linux - difference between number in the same column using AWK

I have a file containing one column of number: 1 2 4 4 10 I would like to calculate the difference between each number ... 6 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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linux - Force a shell script to fflush

I was wondering if it was possible to tell bash that all calls to echo or printf should be followed up by ... messages that they write in order. See Question&Answers more detail:os...

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

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995 views

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linux - OpenSSL encoding errors while converting cer to pem

I`m trying to convert the .cer file to .pem through openssl, the command is: openssl x509 -inform der -in ... =X509 What am I doing wrong? See Question&Answers more detail:os...

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

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867 views

1 answer

linux - How can I replace a specific line by line number in a text file?

I have a 2GB text file on my linux box that I'm trying to import into my database. The problem I'm ... the new text. Any ideas/suggestions? See Question&Answers more detail:os...

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

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929 views

1 answer

linux kernel - Make a system call to get list of processes

I'm new on modules programming and I need to make a system call to retrieve the system processes and show how much ... How can I make this call? 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

1 answer

linux - Advice regarding installing ARM toolchain on Ubuntu VM (64bit)

Trying to compile Linux kernel for arm platform on a Ubuntu virtual machine $make ARCH=arm CROSS_COMPILE=arm- ... correct solution or reference. See Question&Answers more detail:os...

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

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