Recent questions tagged Linux

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linux - How to use code completion into Eclipse with OpenCV

I would like to make work the source code completion for Opencv 2.3 on Eclipse. How can i do that? ... appears: "No default proposals". 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 - PyQt5 error "PyCapsule_GetPointer called with incorrect name"

I've just built PyQt5 in a pyenv virtualenv with python 3.6.3 on OpenSUSE leap, the build went fine, but ... tools as stated in the PyQt4 doc 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 - Erroneous "Insecure world writable dir foo in PATH" when running ruby script

When I run a ruby script, it gives me this: [nathanb@nathanb-box ~] myscript . /u/nathanb/bin/myscript: ... disable only this specific warning? 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 - Generate random float number in given specific range of numbers using Bash

can someone help me in generating random float number with given specific range of number in bash (shell). I found ... commands.) jot -p2 0 1 See Question&Answers more detail:os...

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

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913 views

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linux - Mechanism of clipboard of xwindow

Can anybody explain the mechanism of clipboard of xwindow to me? For example, if I make a operation of ... related to this operation? 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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1.2k views

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linux - How to: Progress bar in bash

I want to show a progress bar during a bash operation in a specific format something similar to the following ... Ubuntu 12.04 installation. 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 - Verify if a process is running using its PID in JAVA

I'm currently building an application in JAVA where there can be only one execution. So I'm currently using a ... yet. Thank you very much. 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 - Bash, Remove empty XML tags

I need some help a couple of questions, using bash tools I want to remove empty xml tags from a file eg: ... individuals? Thank you very much! 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 automate telnet session using Expect?

I'm trying to write an expect script to automate telnet. This is what I have so far. #!/usr/bin/expect ... login: foo1 Password: foo2~/justin> 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 - yum install php-pear* on centos

I'm trying to install pear on my centos. I've used "*yum install php-pear**" to install pear and it ... would be possibly going wrong? 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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958 views

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linux - How to call a function (defined in shell script) in a Perl script

I have two scripts, namely shell_script.sh and perl_script.pl. shell_script.sh : It has function definitions which ... script perl_script.pl ? 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 dos2unix?

I am learning perl programming. I have run a perl script in windows platform but I need to run it in ... where should I unzip dos2unix tool? See Question&Answers more detail:os...

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

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879 views

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linux - How to initiate array element to 0 in bash?

declare -a MY_ARRAY=() Does the declaration of array in this way in bash will initiate all the array elements ... initiate array element to 0? 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 - Escaping quotes when using SSH

I'm trying to build a simple deployment script for my PHP apps. I know there are several tools for ... would be greatly appreciated. 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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linux - How do you prompt for a sudo password using Ruby?

Often I find myself needing to write scripts that have to execute some portions as a normal user and other ... this on Linux Ubuntu BTW. See Question&Answers more detail:os...

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

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950 views

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linux - Bash "declare -A" does not work on macOS

My guess is that Bash is not updated on macOS. When googling update Bash macOS, I keep getting the bug fix patch. ... ] ...] I have Yosemite. See Question&Answers more detail:os...

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

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902 views

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linux - Sorting numbers with multiple decimals in bash

In bash using sort with the -n option doesn't give me the expected result. $ cat numbers | sort -n 1.0 1. ... very basic I'm missing here... See Question&Answers more detail:os...

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

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849 views

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linux - How to configure logrotate with php logs

I'm running php5 FPM with APC as an opcode and application cache. As is usual, I am logging php errors ... how to get this working properly? See Question&Answers more detail:os...

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

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1.1k views

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linux - Vim background with gnu screen

I am having trouble with my colorscheme in vim. When editing a file using a vim session started in GNU ... I am connecting through 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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875 views

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linux - C++: Getting incorrect file size

I'm using Linux and C++. I have a binary file with a size of 210732 bytes, but the size reported with ... me. Thanks to everyone who helped. See Question&Answers more detail:os...

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

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906 views

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linux - GDB won't load source file

I'm using arm-linux-gcc to compile a simple C file at host (debian i386) with -g. Then copy the a.out file to the ... 4.8.2 (Debian 4.8.2-14) See Question&Answers more detail:os...

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

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962 views

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linux - ImportError: No module named matplotlib with matplotlib installed

The code line: import matplotlib The error: ImportError: No module named 'matplotlib' The problem: which python3.4 ... work for python3? 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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835 views

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linux - Why do I have to `wait()` for child processes?

Even though the linux man page for wait 1 explains very well that you need to wait() for child processes for ... than a few kB of information) See Question&Answers more detail:os...

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

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833 views

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linux - High Kernel CPU when running multiple python programs

I developed a python program that does heavy numerical calculations. I run it on a linux machine with 32 Xeon ... idea what this means, though. See Question&Answers more detail:os...

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

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1.3k views

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linux - Docker OCI runtime create failed: container_linux.go:349: starting container process caused

I have been working on a project for almost a year, and this project has been working in Docker. Today I noticed ... it. My OS Ubuntu 18.04. See Question&Answers more detail:os...

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

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813 views

1 answer

linux - Check that there are at least two arguments given in a bash script

I am trying to write a script that mimics cp where there is a source and destination input. how can I count ... at least 2 things were given. See Question&Answers more detail:os...

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

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965 views

1 answer

linux - How can I get awk to print without white space?

When I run the following awk -F, '{print $2,":",$1}' It prints "First : Second" How can I get "First:Second" See Question&Answers more detail:os...

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

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1.1k views

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linux - Assembly: Read integer from stdin, increment it and print to stdout

I coded the following assembly script for IA32. It is supposed to read a number from stdin, increment it and ... advance, All the best, Simon See Question&Answers more detail:os...

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

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