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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," ... ,StudentFirstName 100,Logan 101,Matthew Thank in advance...

asked May 1, 2022 in Technique[技术] by Tan (100 points)

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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," ... ,StudentFirstName 100,Logan 101,Matthew Thank in advance...

asked May 1, 2022 in Technique[技术] by Tan (100 points)

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ubuntu - How to use gfortran for Fortran 90 with .for file extension?

After I installed Gfortran in Ubuntu (16.04) is pointing to f95. I see in gfortran manual that -std option ... (not sure) compile Fortran 90. See Question&Answers more detail:os...

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

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ubuntu - phpmyadmin issuing a fatal error for PMA_DBI_num_rows()

Doing a simple phpmyadmin install on a new server and I get the white screen. Going into the apache logs I see: [ ... No idea whats going on :( See Question&Answers more detail:os...

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

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ubuntu - PyQt5 - SIP API 10 level error. API 11 required

Feedback I'm working on a PyQt5 installation (based on Qt5.2.1 / Sip 4.15.5 API 11 ???) with the ... ... please help. 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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ubuntu - git clone: GnuTLS recv error (-9): A TLS packet with unexpected length was received

I'm trying to clone a git repository and I'm receiving following error while executing the command: GnuTLS recv error ... is a Ubuntu 14.04. See Question&Answers more detail:os...

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

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ubuntu 14.04 - Cannot connect to Google Compute Engine instance via SSH in browser

I cannot connect to GCE via ssh. It is showing Connection Failed, and we are unable to connect VM on port 22 ... am new to GCE. Any suggestions? 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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ubuntu - Begin stream simple mp4 with ffserver

I want to stream a mp4 and for this I read about ffserver. So I search and read ffserver documentations but still ... I can but still no luck) See Question&Answers more detail:os...

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

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ubuntu - access mysql in host from guest virtualbox

This is my scenario, I have a Ubuntu 12.10 host and a win 7 guest installed in the virtual box. The ... So any help is appreciated. 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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ubuntu - maven archetype:generate failure caused by org.apache.maven.plugin.MojoFailureException

I have installed maven 2 and following the tutorial as mentioned in the below link maven.apache.org/guides/ ... be appreciated. Thanks, Somnath See Question&Answers more detail:os...

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

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1.6k views

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ubuntu - AVX inside a VirtualBox VM?

I install the latest Ubuntu 14.04 amd64(gcc 4.8.2) in virtualbox, run cat /proc/cpuinfo, get result: The ... AVX in my software in virtualbox? See Question&Answers more detail:os...

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

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ubuntu - How to get file permissions with c++ boost library?

I am working on a project to make a database of the files I have on current directory. And one of the ... each time the program is executed. See Question&Answers more detail:os...

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

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ubuntu - Intel RealSense D435i frames drop on Intel® RealSense? SDK 2.0

It works like a charm when the RGB module of the camera has a resolution of 1280x720, and FPS as 15 frames/sec. ... How do I correct the above? See Question&Answers more detail:os...

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

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ubuntu - Netcat bidirectional communication

The goal which I am attempting to achieve is for a client to send the following command to a server: ... help would be greatly appreciated. See Question&Answers more detail:os...

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

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1.4k views

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ubuntu - Problem Importing Pylab in Python 2.6

I'm using Python 2.6 in Ubuntu 10.10. I've run help("modules") in the Python interpreter and pylab and ... fix it. Any help is appreciated. See Question&Answers more detail:os...

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

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1.5k views

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ubuntu 16.04 - ccmake using cmake version 3.10

I am trying to install the new ITK version which needs a cmake version higher than 3.9 I have just download the ... the 3.10 version of cmake ? See Question&Answers more detail:os...

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

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ubuntu - Two webcams on one usb hub - bandwidth issues

I'm using OpenCV 2.3 to capture video from two webcams on a Linux computer(Ubuntu 10.04) which only has one ... grabbed at about the same time. See Question&Answers more detail:os...

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

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1.9k views

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ubuntu - PATH issue: Could not find valid SPARK_HOME while searching

I updated my PATH to look like this: PATH="$HOME/bin:$HOME/.local/bin:$PATH:/home/username/Installs/Spark/bin ... : No such file or directory See Question&Answers more detail:os...

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

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1.6k views

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ubuntu - Unit service is not loaded properly: Exec format error. on ubuntu18.04 creating .net service

I am trying to create a service to run by .net application on ubuntu 18.04. cd /lib/systemd/system/ ... Could anyone help me with this? See Question&Answers more detail:os...

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

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1.4k views

1 answer

ubuntu 12.04 into docker "service mysql start"

I need ubuntu 12.04 with developing web-services running (sshd, apache2.2, php5.3, mysql-server). I have ... , service apache2 start works 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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1.2k views

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ubuntu - PhoneGap, PhoneGap Build and iOS - Mac needed?

firstly I have reviewed previous similar questions, but there were either old and or contradictory in their answers, ... ? 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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1.5k views

1 answer

ubuntu - File too Large python

I am writing to a file using python. The script suddenly stops running and throws an 'IOError: [Errno 27] File ... a bit big) when it stopped. See Question&Answers more detail:os...

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

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1.9k views

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ubuntu - Vundle - E492: Not an editor command: PluginInstall

I am having trouble getting Vundle for Vim to work (I am on Ubuntu 14.04). Here the relevant part ... Not an editor command: PluginInstall ? See Question&Answers more detail:os...

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

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ubuntu - Why does installing numpy require python-dev in Kubuntu 12.04

Just starting out in python on a pendrive 12.04 Kubuntu environment. I had to install GCC (understand that), ... -dev sudo pip install numpy See Question&Answers more detail:os...

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

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1.8k views

1 answer

ubuntu 11.04 lxml import etree problem for custom python

ubuntu 11.04 has native python2.7 i build python2.5 from source to /usr/local/python2.5/bin, and try to install ... P510:~/downloads/lxml-2.2.4$ 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

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ubuntu - Python multiprocessing utilizes only one core

I'm trying out a code snippet from the standard python documentation to learn how to use the multiprocessing module. The ... .put('STOP') test() See Question&Answers more detail:os...

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

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1.9k views

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ubuntu 14.04 - ImportError: cannot import name 'etree' on Python 3.6

I am getting error while running "from lxml import tree" on python3.6 >>> import lxml >>> from lxml import etree ... 6/dist-packages lxml==3.6.0 See Question&Answers more detail:os...

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

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1.4k views

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ubuntu - git impossible to push after add

Ok, I've a trouble that I'm not able to fix since some week. I use git (on github) to store my projects. ... [wlan0] mtu 1460 (lower than 1500) See Question&Answers more detail:os...

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

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