Recent questions tagged linux

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I have a source input, input.txt a.txt b.txt c.txt I want to feed these input into a program as the following: ... b.txt --file=c.txt Any idea? 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 post raw body data with curl?

Before you post this as a duplicate; I've tried many of the suggestions I found around SO. So far I've ... request? All tips are welcome! 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 remove all white spaces from a given text file

I want to remove all the white spaces from a given text file. Is there any shell command available for this ... removes only spaces, not tabs. 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 create a callback for "monitor plugged" on an intel graphics?

I've got an eeepc with an intel graphics. I'd like to hook a script to the event of a monitor plugged via VGA. How to do 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 - What is the difference between LD_LIBRARY_PATH and -L at link time?

I'm having problems with LD_LIBRARY_PATH at link time (this question has nothing to do with run time). ... the LD_LIBRARY_PATH problem 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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462 views

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linux - Is there any modern review of solutions to the 10000 client/sec problem

(Commonly called the C10K problem) Is there a more contemporary review of solutions to the c10k problem (Last ... on a modern Linux server? See Question&Answers more detail:os...

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

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556 views

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linux - What is the command to match brackets in Emacs?

What is the command to match brackets in Emacs (the equivalent of the % command in Vim)? 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 - Expression after last specific character

foo="/sdf/here/jfds" bar="${foo##*/}" Can anyone explain how the "${foo##*/}" expression works? I ... what this type of expression is called? 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 a way to read man pages in Vim without using temporary files

I want to be able to read man pages in Vim. For some reason, it seems that Vim isn't able to ... without resorting to creating temporary files See Question&Answers more detail:os...

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

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660 views

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linux - parameter for shell scripts that is started with qsub

how can I parametrize a shell script that is executed on a grid (started with qsub) ? I have a shell ... have not found any solution. 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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764 views

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linux - Recursive cat all the files into single file

I have bunch of files sitting in folders like dataAAAjson1.json dataAAAjson2.json dataAABjson1.json ... datajson_x. ... into one single 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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646 views

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linux - When setting IFS to split on newlines, why is it necessary to include a backspace?

I'm curious as to why the backspace is necessary when setting IFS to split on newlines like this: IFS=$( ... the backspace is required. -David. See Question&Answers more detail:os...

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

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749 views

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linux - How to check if X server is running?

Is there any way to find out if the current session user is running an Xserver (under Linux) ? I've started ... am looking for a script 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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826 views

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linux - setting a gdb exit breakpoint not working?

I've set breakpoints on exit and _exit and my program (multithreaded app, running on linux 2.6.16.46-0 ... the exit breakpoints in the debugger. See Question&Answers more detail:os...

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

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713 views

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linux - Is it possible to make a computer behave as a bluetooth HID device?

Is it possible to make a computer behave as a bluetooth HID device? That is, given a local machine with a ... the scope of this question. See Question&Answers more detail:os...

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

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720 views

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linux - Difference between $HOME and '~' (tilde)?

I had always thought that $HOME and ~ were exactly the same and thus could be used interchangeably. Today, when I ... 't get resolved. But 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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709 views

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linux - How to track child process using strace?

I used strace to attach to a process briefly. The process created 90 threads. When I found the offending ... of thread creations like pstree? See Question&Answers more detail:os...

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

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604 views

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linux - Why is clock_gettime so erratic?

Intro Section Old Question contains the initial question (Further Investigation and Conclusion have been added since). Skip to the ... the most frequent delta is 1 ns. This means t...

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

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771 views

1 answer

linux - Remove odd or even lines from a text file

I need to remove odd lines in a text file to make a down-sampling. I've found this command, awk 'NR%2= ... only prints them in the terminal. See Question&Answers more detail:os...

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

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634 views

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linux - How to convert ISO8859-15 to UTF8?

I have an Arabic file encoded in ISO8859-15. How can I convert it into UTF8? I used iconv but it doesn't work ... file, but I don't know how. See Question&Answers more detail:os...

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

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515 views

1 answer

linux - Unable to start Docker Service in Ubuntu 16.04

I've been trying to use Docker (1.10) on Ubuntu 16.04 but installation fails because Docker Service doesn't ... me I would be very thankful See Question&Answers more detail:os...

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

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498 views

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linux - How to list library dependencies of a non-native binary?

When developing for native platform, I can use ldd to list all the shared libraries (.so files) a binary ... for of a foreign binary? See Question&Answers more detail:os...

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

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573 views

1 answer

linux - How to check for openCV on Ubuntu 9.10

How can I confirm if openCV is properly installed in my computer ? Is there any quick command line for it ? I am on Ubuntu 9.10 See Question&Answers more detail:os...

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

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571 views

1 answer

linux - Git on Windows: What do the crlf settings mean?

I don't understand the complexities related to CrLf settings in git: core.autocrlf, core.safecrlf I'm ... insightful, thus not helpful. See Question&Answers more detail:os...

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

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563 views

1 answer

linux - Is d not supported by grep's basic expressions?

This does not generate any output. How come? $ echo 'this 1 2 3' | grep 'd+' But these do: $ echo 'this 1 2 3' | ... 2 3' | grep 'w+' this 1 2 3 See Question&Answers more detail:os...

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

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579 views

1 answer

linux - O_RDWR on named pipes with poll()

I have gone through a variaty of different linux named pipe client/server implementations but most of them use the ... way to open pipes??? See Question&Answers more detail:os...

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

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511 views

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linux - Eclipse Android Plugin -- libncurses.so.5

I am struggling mightily with installing ADT (Android Dev Tools) on Eclipse in Fedora 16 OS, 64-bit. Eclipse ... Eclipse PID and kill 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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802 views

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linux - Batch renaming files in command line and Xargs

So, I have the following structure: . .. a.png b.png c.png I ran a command to resize them ls | xargs ... of the file simular to second command? See Question&Answers more detail:os...

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

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