Welcome to Jonic Developer Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Categories
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged linux
0
votes
410
views
0
answers
Extract multiple columns with no duplicate data with bash on linux
Hi all, i have a csv file like this: ecStudentID,StudentNetworkUsername,StudentName,StudentFirstName 100,ASTDTBJ001,"Andrew,Logan Connor",Logan 100, ... . Example: ecStudentID,StudentFirstName 100,Logan 101,Matthew Thank in advance...
asked
May 1, 2022
in
Technique[技术]
by
Tan
(
100
points)
linux
bash
ubuntu
0
votes
428
views
0
answers
Extract multiple columns with no duplicate data with bash on linux
Hi all, i have a csv file like this: ecStudentID,StudentNetworkUsername,StudentName,StudentFirstName 100,ASTDTBJ001,"Andrew,Logan Connor",Logan 100, ... . Example: ecStudentID,StudentFirstName 100,Logan 101,Matthew Thank in advance...
asked
May 1, 2022
in
Technique[技术]
by
Tan
(
100
points)
linux
bash
ubuntu
0
votes
593
views
1
answer
linux - Delete only fully formed line ranges from a text file while ignoring those that only have a start delimiter
I what to delete lines between START and END keywords as described below: START text1 text2 text3 START text4 END text5 text6 START test7 START test8 ... : START text1 text2 text3 text5 text6 START text7 See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
711
views
1
answer
linux - sed returns "sed: command garbled"
I have this data in file.txt: 1234-abca-dgdsf-kds-2;abc dfsfds 2 123-abcdegfs-sdsd;dsfdsf dfd f 12523-cvjbsvndv-dvd-dvdv;dsfdsfpage I want ... following error: sed command garbled Why is this happening? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
631
views
1
answer
linux - Changing the directory of the shell through a C++ program
I'm trying to write a simple C++ program to execute Linux commands. I'm stuck at changing the directories (commands like chdir and cd don't work). This ... Directory is '; pwd"); system("chdir Desktop"); See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
508
views
1
answer
linux - Using a glob expression passed as a bash script argument
TL;DR: Why isn't invoking ./myscript foo* when myscript has var=$1 the same as invoking ./myscript with var=foo* hardcoded? Longer form I've come ... to do with the wildcard expansion in the for loop. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
530
views
1
answer
linux - Replace bash variables in template file
I am attempting to use Bash in order to run a form of an install process. During this process, a configuration file is copied and certain values ... just Bash and commands available on most Linux systems? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
661
views
1
answer
linux - Makefile with multiple targets
Hopefully this is a very simple question. I have a makefile pattern rule that looks like this: %.so : %.f %.pyf f2py -c -L${LAPACK_DIR} ${GRASPLIBS} -m ... that need to be built so I can just run 'make'. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
631
views
1
answer
linux - sed: insert a line in a certain position
i was just looking around but i didn't find anything that works for me. I would like to insert a new line (basically an html table row) on top of the ... Row:1 Cell:4</td> just below the HEADERS? Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
581
views
1
answer
linux - History command works in a terminal, but doesn't when written as a bash script
I have a simple one-liner that works perfectly in the terminal: history | sort -k2 | uniq -c --skip-fields=1 | sort -r -g | head ... special about the history command that prevents us from executing it? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
793
views
1
answer
linux - grep with continuous pipe does not work
(maybe it is the "tcpflow" problem) I write a script to monitoring http traffic, and I install tcpflow, then grep it works (and ... github.com/zhengkai/config/blob/master/script/monitor_outgoing_http.sh See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
502
views
1
answer
linux - How to correctly include the support library in non-Eclipse Android application
I am thinking how to get Android' s support library to include and compile outside Eclipse. I am using Linux as my build environment and I am not using any ... can I do it using only Ant and Android SDK? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
520
views
1
answer
linux - Compiling C++ code makes the system hang
When I try to compile this file by issuing the command, "g++ qr.cpp -o qr" The system hangs. I haven't seen this kind of an error anywhere else. ... gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
546
views
1
answer
linux - ELF Header or installation issue with bcrypt in Docker container
Kind of a longshot, but has anyone had any problems using bcrypt in a linux container (specifically docker) and know of an automated workaround? I have ... a good alternative to bcrypt with a Node stack? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
607
views
1
answer
linux - Write-only mapping a O_WRONLY opened file supposed to work?
Is mmap() supposed to be able to create a write-only mapping of a O_WRONLY opened file? I am asking because following fails on a Linux 4.0.4 x86-64 ... I couldn't find anything obvious in Linux/mm/mmap.c) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
572
views
1
answer
linux - Get lines of file1 which are not in file2
I have two long, but sorted files. How to get all lines of first file which are not in second file ? file1 0000_aaa_b 0001_bccc_b 0002_bcc <-- ... ... file2 0000_aaa_b 0001_bccc_b 0003_aaa_d 0006_xxx ... See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
581
views
1
answer
linux - Use sed with ignore case while adding text before some pattern
sed -i '/first/i This line to be added' In this case,how to ignore case while searching for pattern =first See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
555
views
1
answer
linux - How do I determine whether the filesystem is case-sensitive in .net?
Does .net have a way to determine whether the local filesystem is case-sensitive? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
622
views
1
answer
linux - Assembler sysTime giving error on executing
i'm learning Assembler (Nasm, Linux, Ubuntu 16.4, x86_64) and getting Trouble using the sys_time call (mov eax, 13). section .bss time: resb 30; ... have to declare a Integer? or is my kernel broke? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
583
views
1
answer
linux - netfilter-like kernel module to get source and destination address
I read this guide to write a kernel module to do simple network filtering. First, I have no idea of what below text this means, and what's the ... 's utilities(source file). Any help will be appreciated. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
598
views
1
answer
linux - Why does order in which input libraries are specified matter?
I'm quite new to programming for Linux. You could say I'm a Windows guy. So, I was porting my project to Linux, and it almost made me insane: I'm ... 'm pretty sure it is not the case with MSVC linker... See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
619
views
1
answer
linux - Access Keystrokes in C
I am trying to access keystrokes in C. I can access alphanumeric keys. How can I access Control, Shift and Alt key? Plus I read somewhere that sometimes while ... when ' ' was pressed. GNU C. Ubuntu 11. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
704
views
1
answer
linux - How to duplicate string in bash?
I have the following string in bash str="kallel" I want to create from str an str2. The str2 contains str duplicated till the length = 20. So the ... : str2="kallelkallelkallelka" How to do in in bash? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
585
views
1
answer
linux - Prevent * to be expanded in the bash script
Linux bash script: #!/bin/bash function Print() { echo $1 } var="*" Print $var Execution results:
[email protected]
:~/tmp$ ./sample-script sample- ... complicated than *, for example: home/alex/mydir/*. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
731
views
1
answer
linux - Cannot use wildcard in kernel module makefile
I am pretty familiar with Makefiles and kernel modules, but recently I got a problem in my Makefile that doesn't make any sense -- on using wildcards ... in the makefile. Any help will be appreciated. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
710
views
1
answer
linux - Shell Script for multithreading a process
I am a Bioinformatician and recently stuck in a problem which requires some scripting to speed up my process. We have a software called PHASE and Command ... advantage of 4 cores and speed up my process. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
760
views
1
answer
linux - Backing up (and restoring) a Plone instance
I have a Plone installation in my home directory under Linux. ~/Plone. This was made from a default distribution of Plone from its website. So Plone ... found this resource, but it's not specific enough. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
0
votes
742
views
1
answer
linux - Overwrite input file using awk
I have the following line of code: awk -F, '{printf "%09d,%d " ,$1,$2}' $newDir/$processNew and it does what I want it to, but instead ... overwrite the current input file which is $processNew ? Thanks. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
linux
Page:
1
2
3
4
5
6
...
101
next »
Ask a question:
Welcome to Jonic Developer Community for programmer and developer-Open, Learning and Share
Just Browsing Browsing
[1] ecmascript 6 - Merge two complex arrays of objects by field in javascript
[2] encryption - Encrypt/Decrypt String using Public/Private Key in Java and Javascript
[3] Android 能否通过Rsa 对File进行加解密?
[4] java - No connection could be made error with Selenium webdriver
[5] nuxt.js - Nuxt build only from git committed sources
[6] How to read a parameter, from a url in qml?
[7] three 场景下的scenne.chilren 怎么深度拷贝
[8] 子元素旋转90度,如何正常的撑开父元素(高宽对应)
[9] js中c: est1替换成c:/test/1 要怎么处理
[10] javascript - Is there a CSS parent selector?
548k
questions
547k
answers
4
comments
46.9k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
google
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
web
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
...