Recent questions tagged linux

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linux - Installing Gnuplot 5.0 on Ubuntu

I have been trying to install Gnuplot 5.0 from source on Ubuntu. I followed the procedure given in the blog: ... that would be helpful as well. 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 - syntax error near unexpected token ' - bash

I have a written a sample script on my Mac #!/bin/bash test() { echo "Example" } test exit 0 and this ... the same issue ? 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 - Is a return value of 0 from write(2) in C an error?

In the man page for the system call write(2) - ssize_t write(int fd, const void *buf, size_t count); it ... the process receiving a signal. 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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linux - How to setup Jenkins with HA?

Currently we are using a Jenkins as our CI system and there is one master server and slaves which are ... a High Availability for Jenkins? 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 - System calls Implementation

If a user application makes a system call , a software interrupt/exception is triggered. How can I see ... generating a software interrupt ? 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 - ps: Clean way to only get parent processes?

I use ps ef and ps rf a lot. Here is a sample output for ps rf: PID TTY STAT TIME COMMAND 3476 pts/0 ... (maybe using awk) to accomplish 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 - Shell function to tail a log file for a specific string for a specific time

I need to the following things to make sure my application server is Tail a log file for a specific string Remain ... outs in a while loop ? 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 - Android missing platform tools

Please can someone assist me with this, I have an Ubuntu server (terminal only), I have downloaded the ... /help.ubuntu.com/community/AndroidSDK 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 - Where does output of print in kernel go?

I am debugging a driver for linux (specifically ubuntu server 9.04), and there are several printf statements ... 8671.924919] Any explainations? 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 - D-Bus tutorial in C to communicate with wpa_supplicant

I'm trying to write some code to communicate with wpa_supplicant using DBUS. As I'm working in an embedded system ... string values on D-Bus! 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 is there behind a symbolic link?

How are symbolic links managed internally by UNIX/Linux systems. It is known that a symbolic link may exist even ... inode (if one exists)? 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: Head & Tail behavior with bash script

Suppose I have following script:- test.sh #!/bin/bash command1 #prints 5 lines command2 #prints 3 lines I run ... prints first line then exit. 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 - Executing script on receiving incoming connection with xinetd

I want xinetd to execute a shell script when a connection is received on a certain port. To accomplish this, followed ... =1 comm="/sbin/init") 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 msmtp configuration sends from shell but fails from PHP/apache

linux (fedora 20) msmtp configuration sends from shell but fails from PHP/apache, I am stumped... my ... /php webserver for web development 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 config socks5 proxy on Git

I have problem with downloading the git start link (git://anongit.freedesktop.org/wayland/wayland) through a ... password for this socks5 proxy 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 - Why file is accessible after deleting in unix?

I thought about a concurrency issue (in Solaris), what happen if while reading someone tries to delete the same file ... for next chunk or not? 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 - sed - Piping a string before the last line in a file

I have a command that prints a single line. I want to add/pipe this line to a file, just above its last line. ... I use STDIN instead of "foo"? See Question&Answers more detail:os...

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

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855 views

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linux - Replace first few lines with first few lines from other file

I am working on Linux. I have 2 files - file1.dat and file2.dat. cat file1.dat 1 2 3 4 5 6 ... input command? I tried various combinations. 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 parse json response in the shell script?

I am working with bash shell script. I need to execute an URL using shell script and then parse the json data ... ; esac Does this looks right? 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 - Use gnuplot to plot sqlite database

I have a sqlite database that contains basic weather information in the following format: temp1 temp2 pressure humidity 22 ... able to plot 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 - Is it possible to write shell command within Pharo smalltalk?

Like in other programming language, is there a way of running linux shell command in Pharo smalltalk or a ... not allow such functionality. 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 can I check the data transfer on a network interface in python?

There is a socket method for getting the IP of a given network interface: import socket import fcntl import struct ... 'd love a socket method. 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 - apache mod_rewrite not working with .htaccess file

OK, I've been having some issues with aws or something, such that I cannot seem to get mod_rewrite to work. Just ... but I'm not sure what... 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 edit 300 GB text file (genomics data)?

I have a 300 GB text file that contains genomics data with over 250k records. There are some records with bad ... an unknown number of times. 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 - x86 memory access segmentation fault

I am learning x86 assembly out of curiosity. I'm currently using a Linux based OS with the NASM assembler. I ... like a heap in assembly? 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 execve a process, retaining capabilities in spite of missing filesystem-based capabilities?

I want to make system usable without setuid, file "+p" capabilities, and in general without things which are ... through parent->child things. 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 - Running a Python Script using Cron?

I have a python script that I'd like to add to cron. The script has +x permission on it. How ... "Python script_name.py", everything works. See Question&Answers more detail:os...

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

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