Recent questions tagged Linux

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linux - Paste two text lists (one list a file) into one list separated by semicolon

An example of the process/output would be: File1: hello world File2: foo bar Resulting file after concatenation ... paste command under Ubuntu. See Question&Answers more detail:os...

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

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1.0k views

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linux - How to get the address of a kernel module that was inserted using insmod?

I would like to know the address of a kernel module. Actually, from stack trace it looks that the crash ... each modules loaded using insmod. 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 - Ansible: sudo without password

I want to run ansible with user sa1 without sudo password: First time OK: [root@centos1 cp]# ansible cent2 -m ... parsed": false } Please help! See Question&Answers more detail:os...

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

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872 views

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linux - Move files that are 30 minutes old

I work on a server system that does not allow me to store files more than 50 gigabytes. My application takes ... folder and the program fails. See Question&Answers more detail:os...

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

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801 views

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linux - No C compiler on EC2?

I've been trying to install Gearman on my EC2 instance, but when I try to ./configure gearmand, I get this: ... . Any advice? 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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835 views

1 answer

linux - C streams: Copy data from one stream to another directly, without using a buffer

I want to copy data from one stream to another. Now normally, I would do it this way: n = fread( ... functions? Or a Linux-specific 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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940 views

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linux - How to split mailbox into single file per message?

I'd like to split my inbox into separate files (one file per one message) by bash command, or may be simple program ... can I do it? WBR, Thanx. 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

1 answer

linux - Force CMake to use the full library path

I have the following problem. I have a separate {bin,lib,include} tree on my Linux machine where CMake and ... when it performs the linking? See Question&Answers more detail:os...

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

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944 views

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linux - timestamp accuracy on EXT4 (sub millsecond)

I was writing some code in Vala where I would first get the system time, then create a file, then retrieve ... behave in the same way. See Question&Answers more detail:os...

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

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767 views

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linux - Link to a specific inode

I have a file that was deleted, but is still held open my a program. I found the inode number using lsof. ... helps, but Perl would be handy. 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

1 answer

linux - Send SIGINT in python to os.system

I am trying to run a Linux command strace -c ./client in python with os.system(). When i press ctrl+c i ... terminal,so have to use os.system See Question&Answers more detail:os...

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

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783 views

1 answer

linux - Convert a text file into columns

Let's assume I have scientific data, all numbers arranged in a single column but representing an intensities matrix of n ... 60 * 60 or bigger. 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 - how to rebuild rootfs in buildroot

I am going to setup build environment to make my own linux embedded system for AT91SAM9X25 Board. I am using ... buildroot? 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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791 views

1 answer

linux - How to embed version information into shared library and binary?

On Linux, is there a way to embed version information into an ELF binary? I would like to embed this info ... version tab in DLL properties)? See Question&Answers more detail:os...

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

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932 views

1 answer

linux - LD_PRELOAD with setuid binary

I am trying to use LD_PRELOAD to preload a library with an application that has setuid permissions. Tried ... usually LD_LIBRARY_PATH is empty) See Question&Answers more detail:os...

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

0 votes

838 views

1 answer

linux - Libreoffice --headless refuses to convert unless root, won't work from PHP script

Running headless Ubuntu server 12.something. root@server: chown www-data /my/path/ -R root@server: chgrp www-data ... or some dependency quirk? See Question&Answers more detail:os...

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

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1.0k views

1 answer

linux - Solution for Git GUI client for remote SSH

I am a Git GUI user. I don't have an issue using it for my local development. However, now we have a server ... are open for OS?X and Windows. See Question&Answers more detail:os...

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

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764 views

1 answer

linux - what does $* mean in a shell script

What does $* exactly mean in a shell script? For example consider the following code snippet $JAVA_HOME/bin/java/com/test/Testclass $* See Question&Answers more detail:os...

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

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707 views

1 answer

linux - How do you compile/build/execute a C++ project in Geany?

I really didn't think it would be this difficult. Geany clearly has the ability to create projects, add files to ... could be a deal breaker. See Question&Answers more detail:os...

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

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806 views

1 answer

linux - Node.JS child processes being killed when parent dies

I am using child_process.spawn() to start a script from my Node.JS application running on Ubuntu. As far ... progress of those running tasks. See Question&Answers more detail:os...

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

0 votes

748 views

1 answer

linux - Release of flock in case of errors?

Imagine the following Perl code (here in pseudo code): successfully acquired flock for FILEHANDLER # line 1 ... without releasing the lock? See Question&Answers more detail:os...

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

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812 views

1 answer

linux - Merging two files by a single column in unix

I would like to merge two files by one column in unix. I have file_a: subjectid name age 12 Jane 16 24 ... 31 Please help and 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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695 views

1 answer

linux - Dynamically determining where a rogue AVX-512 instruction is executing

I have a process running on an Intel machine that supports AVX-512, but this process doesn't directly use any AVX- ... ? OS is Ubuntu 16.04. See Question&Answers more detail:os...

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

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784 views

1 answer

linux - Is there a way to know the creation time of a file in ubuntu?

i am using ubuntu and want to know the creation time of a file even when it gets modified or accessed ? See Question&Answers more detail:os...

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

0 votes

1.1k views

1 answer

linux - how to rebuild rootfs in buildroot

I am going to setup build environment to make my own linux embedded system for AT91SAM9X25 Board. I am using ... buildroot? Thanks in advance. See Question&Answers more detail:os...

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

0 votes

979 views

1 answer

linux - How to embed version information into shared library and binary?

On Linux, is there a way to embed version information into an ELF binary? I would like to embed this info ... version tab in DLL properties)? See Question&Answers more detail:os...

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

0 votes

995 views

1 answer

linux - LD_PRELOAD with setuid binary

I am trying to use LD_PRELOAD to preload a library with an application that has setuid permissions. Tried ... usually LD_LIBRARY_PATH is empty) See Question&Answers more detail:os...

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

0 votes

845 views

1 answer

linux - Libreoffice --headless refuses to convert unless root, won't work from PHP script

Running headless Ubuntu server 12.something. root@server: chown www-data /my/path/ -R root@server: chgrp www-data ... or some dependency quirk? See Question&Answers more detail:os...

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

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