Recent questions tagged Linux

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linux - How do you get PHP, Symlinks and __FILE__ to work together nicely?

On localhost. I have the following directory structure: /share/www/trunk/wp-content/plugins/otherfolders /share/www/ ... is not an option. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Dropping Root Permissions In Python

I'd like to have a Python program start listening on port 80, but after that execute without root permissions. Is ... to get port 80 without it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Bash: wait with timeout

In a Bash script, I would like to do something like: app1 & pidApp1=$! app2 & pidApp2=$1 timeout 60 wait ... within the same shell. Any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - TERM environment variable not set

I have a file.sh with this, when run show : TERM environment variable not set. smbmount //172.16.44.9/ ... echo "/mnt/siscont5 desmontada..." See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Efficiently reading a very large text file in C++

I have a very large text file(45GB). Each line of the text file contains two space separated 64bit unsigned ... yes, please attach some links. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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698 views

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linux - How to avoid race condition when using a lock-file to avoid two instances of a script running simultaneously?

A typical approach to avoid two instances of the same script running simultaneously looks like this: [ -f " ... directories be used instead? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Position Independent Executables and Android

I have written a .c source code (in Eclipse) which is using libcap library to get information related ... a position independent executable. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - What is PATH on a Mac (UNIX) system?

I'm trying to setup a project, storm from git: https://github.com/nathanmarz/storm/wiki/Setting-up- ... just blindly following the instructions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux kernel - Handling ARM TrustZones

ARM has something called TrustZone. As per ARM documentation , it gives that a process can run in Secure / ... help me in understanding this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - What does "ulimit -s unlimited" do?

There are understandably many related questions on stack allocation What and where are the stack and heap? Why ... running on x86_64 hardware. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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710 views

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linux - How have both local and remote variable inside an SSH command

How can I have both local and remote variable in an ssh command? For example in the following sample code: A=3; ... both A and B be accessible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - How do I find the maximum stack size?

I am working on Ubuntu 11.04. How do I find out the maximum call stack size of a process and also the size of each frame of the stack? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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629 views

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linux - Force gcc to compile 32 bit programs on 64 bit platform

I've got a proprietary program that I'm trying to use on a 64 bit system. When I launch the setup it works ... . Would a 32 bit chroot work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Do I need -D_REENTRANT with -pthreads?

On Linux (kernel 2.6.5) our build system calls gcc with -D_REENTRANT. Is this still required when using ... and linker. Any thoughts? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Directory last modified date

Am wondering when the directory last modified date is changed. I modified a file inside a particular directory (via ... it suppose to function? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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613 views

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linux - How can I change the filename of a shared library after building a program that depends on it?

I have a program that depends on a shared library it expects to find deep inside a directory structure. I' ... to change search paths globally. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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428 views

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linux - grep a large list against a large file

I am currently trying to grep a large list of ids (~5000) against an even larger csv file (3.000. ... more efficient approaches to this problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

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linux - Bash capturing output of awk into array

I am stuck on a little problem. I have a command which pipes output to awk but I want to capture the output of ... need to do to make this work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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434 views

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linux kernel - module_init() vs. core_initcall() vs. early_initcall()

In drivers I often see these three types of init functions being used. module_init() core_initcall() early_initcall() ... other ways of init? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - How do applications resolve to different versions of shared libraries at run time?

I'm a noob to how shared libraries work on linux. I am trying to understand how do applications resolve ... the obj file be distinguished ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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774 views

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linux - Converting jiffies to milli seconds

How do I manually convert jiffies to milliseconds and vice versa in Linux? I know kernel 2.6 has a function for ... they're defined in 2.4. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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610 views

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linux - Using `date` command to get previous, current and next month

I am using below to get previous, current and the next month under Ubuntu 11.04: LAST_MONTH=`date +'%m' - ... , current and next month instead? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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482 views

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linux - Count lines in large files

I commonly work with text files of ~20 Gb size and I find myself counting the number of lines in a given file ... how feasible it is. Any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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570 views

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linux - node.js: cannot find module 'request'

I installed request module, and getting the error: module.js:340 throw err; ^ Error: Cannot find module ' ... above path is automatically added. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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459 views

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linux - Shellscript to monitor a log file if keyword triggers then execute a command?

Is there a cheap way to monitor a log file like tail -f log.txt, then if something like [error] appears, execute a command? Thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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847 views

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linux - "Non Zero Exit Status" R 3.0.1 'XML' and 'RCurl'

I am having a bit of trouble installing XML and RCurl on my Ubuntu machine 13.10. I performed all sudo update ... on how to proceed from here. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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588 views

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linux - error_log per Virtual Host?

On one Linux Server running Apache and PHP 5, we have multiple Virtual Hosts with separate log files. We ... error_logs for each Virtual Host? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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linux - Colour highlighting output based on regex in shell

I'd like to know if I can colour highlight the output of a shell command that matches certain strings. For ... profile' option in my .bashrc. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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