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Ask your administrator if you think this is wrong. ====== Ubuntu 16 and 17 ====== ===== Get Running Guide ===== * install pip, if the python is 2.7, install pip3 if the python is 3.5 or above <code bash>sudo apt install python-pip</code> * install PyQt4 if 2.7 or PyQt5 if 3.5 above <code bash> sudo apt-get update sudo apt-get install pyqt4-dev-tools </code> * install QtCreator (Qt5 + Cpp) ([[http://www.lucidarme.me/?p=4061|ref]]) <code bash> sudo apt-get install build-essential sudo apt-get install qtcreator sudo apt-get install qt5-default </code> * to run QtCreator <code bash>qtcreator</code> * QtCreator tutorial: * Adding/Setting up Android into Qt Creator * https://www.youtube.com/watch?v=dQUGBQ_yzdc * https://www.packtpub.com/books/content/setting-qt-creator-android * http://doc.qt.io/qtcreator/creator-deploying-android.html * https://www.youtube.com/watch?v=WFGRr0DV3oM ====== Install App with Ubuntu Software ====== * Before you install App, in the Ubuntu Software menu > Software and Update, make sure Download From drop down list choose the server in or close to your location. so that install and all process is faster. ===== Developer Tool ===== ^ code editor | notepadqq | ^ C# | MonoDevelop | **VSCode** * ref: https://code.visualstudio.com/Download * (optional if you have curl) <code bash>sudo apt-get install curl</code> * install code from cmd (https://code.visualstudio.com/docs/setup/linux) <code bash>curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg sudo mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/vscode stable main" > /etc/apt/sources.list.d/vscode.list' sudo apt-get update sudo apt-get install code </code> * reboot and launch with <code bash>code</code> * install git for code <code bash>sudo apt-get install git</code> ===== Graphic App Install ===== ^ 3D app | Blender | ^ 2D app | Krita | ^ Video Editor | KDEnLive | ===== Utility App Install ===== ^ FTP | FileZilla | ^ Local Transfer | Dukto | | | <code>sudo apt-get install gdebi wget download.opensuse.org/repositories/home:/colomboem/xUbuntu_12.04/amd64/dukto_6.0-1_amd64.deb sudo gdebi dukto_6.0-1_amd64.deb rm dukto_6.0-1_amd64.deb echo "Now Dukto is in your app list" </code> | ===== Install App with apt-get Command ===== * Ubuntu software can be buggy and server connection may be slow; * apt-get command way of install App can be stable and you can see exactly what is going on **Install Git** * command <code bash>sudo apt-get install git</code> * git usage example, get a clone copy of a github folder <code bash>git clone https://github.com/ninja-ide/ninja-ide</code> **Install KDE or MATE desktop environment** * KDE desktop environment installation, instead of default GNOME <code bash>sudo apt-get install kubuntu-desktop</code> * MATE desktop environment (17.10) and choose lightdm as display manager <code bash>sudo apt install -y ubuntu-mate-desktop</code> * ref: https://www.hiroom2.com/2017/11/23/ubuntu-1710-mate-en/ ====== Custom Folder Location in Linux ====== ===== Step 1 - Understand Linux Directory ===== * full graphic guide on Linux directory hierarchy: https://www.blackmoreops.com/2015/02/14/linux-file-system-hierarchy/ \\ {{:techwiki:ubuntu:linux-file-system-hierarchy-linux-file-structure-optimized.jpg|}} * other than your Home folder /home/your_name/ (~), you may want to put thing in a custom folder, like D:/ drive in your windows system, * As you know, Linux / root directory is like your C:/ drive, all system folders are there and not for your to change (aka Filesystem Hierarchy Standard (FHS) for linux) * those system folders are very short-named for faster typing on old slow computers 40 years ago * ref: http://tldp.org/LDP/Linux-Filesystem-Hierarchy/html/ ^ Linux | Windows | ^ Super User (root) || | /root | main OS like Windows folder | | /sbin | system binary, like System32 in windows | ^ Normal User || | /bin | system command binary, includes bash, mv,rm; \Windows\System32\ or \Windows\SysWOW64 | ^ system || | boot | boot loader | | lib | kernel modules and library | | mnt | partition path | | media | removable storage path | | dev | device drivers | | proc | system info and status folder | | etc | configuration file for system, like etc folder in windows | | var | log folder | | usr | system Program Files | | /usr/sbin | system Program Files bundled with OS | | /usr/bin | user shared system Program Files for all users | | opt | 3rd party Program Files for all users | | srv | serivce folder | ^ user ^ | home | user home directory | ===== Step 2 - Create D drive like folder ===== * command <code bash> sudo mkdir /d sudo chmod 777 /d </code> ====== Technical Tips ====== ===== new apt cmd vs old apt-get cmd since ubuntu 16 ===== * ref: https://itsfoss.com/apt-vs-apt-get-difference/ ^ New since U16 ^ old way ^ description ^ | apt install | apt-get install | Installs a package | | apt remove | apt-get remove | Removes a package | | apt purge | apt-get purge | Removes package with configuration | | apt update | apt-get update | Refreshes repository index | | apt upgrade | apt-get upgrade | Upgrades all upgradable packages | | apt autoremove | apt-get autoremove | Removes unwanted packages | | apt full-upgrade | apt-get dist-upgrade | Upgrades packages with auto-handling of dependencies | | apt search | apt-cache search | Searches for the program | | apt show | apt-cache show | Shows package details | ===== Screenshot with Cmd or Shortcut ===== * screenshot cmd for a selection area (auto saved at ~/Picture folder) <code bash>gnome-screenshot -a</code> * ref: * https://help.gnome.org/users/gnome-help/stable/screen-shot-record.html * https://askubuntu.com/questions/114429/default-save-directory-for-gnome-screenshot ===== USB capacity varify ===== * install f3write and f3read tool by type: sudo apt-install f3 * test write and read on flash mount directory <code bash>f3write /media/username/flash_drive_label_name # after done, f3read /media/username/flash_drive_label_name </code> ===== check USB device name ===== * list device name and mount point <code bash>lsblk</code> * list mount point <code bash>mount</code> * check device plugin notice <code bash>dmesg</code> ===== Write ISO to USB ===== - check sum for verify file corrupt <code bash>sha256sum linux_os_disk.iso</code> - then search online for verify the sum code is same as online provided one - umount usb <code bash>umount /dev/sdb1_like_part_name_for_usb</code> - write <code bash>dd if=linux_os_disk.iso of=/dev/sdb_like_device_Disk_name_check_above</code> * if you got error when boot that finished usb like "isolinux.bin missing or corrupt", means you had dd into its partition with a number instead of sdb_name_like device. use lsblk again to see the name for the DISK or PART ====== Problem and Fix ====== ===== could not get dpkg lock when apt install at startup ===== * Problem Analysis: * Software Updater (apt manager) is daily update at startup and lock apt. * Solution A: * change Software Updater (search in Ubuntu app manager) > Launch > Setting > Update tab > change to 2 weeks for every checking \\ {{:techwiki:ubuntu:ubuntu_update_setting.png?400|}} * Solution B: * code to change it <code bash> sudo systemctl mask apt-daily.service sudo systemctl mask apt-daily.timer sudo systemctl mask apt-daily-upgrade.service sudo systemctl mask apt-daily-upgrade.timer </code> techwiki/ubuntu.txt Last modified: 2021/08/28 08:54by ying