linux learning

# linux learning ###### tags: `linux` ---- ### 外接SDcard 新增 ```bash= sudo fdisk -l ## 查看SD卡 sudo umount /dev/mmcblk1p1 ## 卸載SD卡 sudo mkfs.ext4 /dev/mmcblk1p1 ##格式化成ext4 sudo blkid /dev/mmcblk1p1 ## 確認格式化是否成功 sudo mount /dev/mmcblk1p1 /media/ubunut/SD32G ##掛載 SD ## */* 根目錄下的資料夾 ``` ### 複製系統到SD Card ```bash= sudo cp -ax / /media/ubuntu/sd # #複製根目錄到SD sudo cd /media/ubuntu/sd ## 進入SD更改開機順序 ## extlinux.conf # 複製一份 sudo cp extlinux.conf extlinux.conf.orginal sudo vim extlinux.conf ## 複製LABEL 之後全部內容 # 更改 root=/dev/mmcblk0p1 to root=/dev/mmcblk1p1 # 貼上剛剛複製的LABEL 再更改LABEL 後面的名稱 # DEFAULT primary to DEFAULT sdcard ``` ### opencv libopencv_core.so.3.x ```shell= ## "libopencv_core.so.3.x" # 因為沒有在make opencv 時加入寫入pkg-config的選項 # 1.Find the folder containing the shared library libopencv_core.so.3.2 using the following command line. sudo find / -name "libopencv_core.so.3.2*" ## Then I got the result: /usr/local/lib/libopencv_core.so.3.2. # # 2. Create a file called /etc/ld.so.conf.d/opencv.conf and write to it #the path to the folder where the binary is stored.For example, I wrote /usr/local/lib/ to my opencv.conf file. # 3. Run the command line as follows. sudo ldconfig -v #Try to run the test binary again. ``` ### grpc ```proto= asdasd ``` ### pkg-config ```shell= ## 查看pkg-config list of path pkg-config --variable pc_path pkg-config ``` https://github.com/grpc/grpc/tree/master/examples/cpp/helloworld ### makefile ```shell= $@：目前的目標項目名稱。 $<：代表目前的相依性項目。 $*：代表目前的相依性項目，但不含副檔名。 $?：代表需要重建（被修改）的相依性項目。 % : 萬用配對字元 vpath %h ../headers ## make 在 “../headers” 目錄下搜索所有以 “.h” 結尾的文件。 -lpthread ###include <thread> ``` ### jupyter #### setting no brower in remote pc ```shell= jupyter notebook --no-browser --port 8888 ``` #### 改背景 ``` pip install --upgrade jupyterthemes jt -l #查看主題 jt -t #更改主題 jt -r #恢復默認 ``` #### local pc use putty ![](https://i.imgur.com/S8TDZDs.png) ### GPIO (linux kernel) ```shell= ## gpio config path sudo su ## 為了進入kernel path cd /sys/kernel/debug cat gpio ## show gpio file ``` https://devtalk.nvidia.com/default/topic/1030443/jetson-tx2/using-gpio-on-nvidia-jetson-tx2/ http://derekmolloy.ie/kernel-gpio-programming-buttons-and-leds/ ### Linux kernel module ```shell ##You should avoid using global variables in kernel modules ``` ### pip install scipy error ```shell= sudo apt-get install libblas-dev liblapack-dev libatlas-base-dev gfortran sudo pyhon3 -m pip install scipy sudo pip uninstall enum34 sudo apt-get install python3-scipy ``` ### dockerhub on jetson tx1 ```shell= docker pull emacski/tensorflow-serving:1.11.1-arm64v8 ``` [參考資料](https://hub.docker.com/r/emacski/tensorflow-serving) [參考資料_1](https://blog.cavedu.com/2018/12/07/%E7%BF%BB%E8%AD%AF-2016-12-07-%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8tensorflow-serving%E6%90%AD%E9%85%8Ddocker%EF%BC%9F/) [參考資料_2](http://fancyerii.github.io/books/tfserving-docker/) [參考資料_3](https://github.com/helmuthva/jetson) https://b8807053.pixnet.net/blog/post/82763069 helmuthva/jetson-xavier-tensorflow-serving:0.4.3 https://devtalk.nvidia.com/default/topic/1031642/jetson-tx2/tensorflow-serving-on-jetson-tx2/ ### 看資料夾大小 ```shell= du -sh /* ``` ### linux disk speed test ```shell= sudo hdparm -Tt /dev/sda ``` ### mri script mode of ar tool ```shell= create libnew.a addlib libopencv_core.a addlib libopencv_imgproc.a addlib libopencv_highgui.a addlib libmyown.a save end ar -M <script.mri ``` ### ldd config 抓出來 ```shell= ldd /bin/bash | grep "=> /" | awk '{print $3}' | xargs -I '{}' cp -v '{}' test/ ``` https://blog.csdn.net/czyt1988/article/details/71194457 ### linux status of port ```shell= sudo nmap -sT -O localhost ``` ### vnc 丟丟看 [參考](https://raspberrypi.stackexchange.com/questions/13644/remote-access-with-vnc-outside-local-network) 1. 安裝 `sudo apt-get install x11vnc` 2. run command `x11vnc -ssh name@static-ip:outputport` 3. !!!name is remote viewer name.!!! ### terminal color `.bashrc` ```shell= force_color_prompt=yes ``` ### x11 forward [這個就懂](https://ssarcandy.tw/2017/03/20/Setup-x11-forwarding-on-Debian/) ### unzip multiple file ```shell= unzip '*.zip' ``` 一定要加`''`因為不加會像是 ```shell= unzip a.zip b.zip c.zip ``` ### 不用遠端看multi image ```shell= sudo apt-get install nitrogen ``` ### 記憶體不見了 [給你參考](https://www.linuxatemyram.com/) ### Top command terminal output to text ![](https://i.imgur.com/TU34KMR.png) [這篇](https://www.tecmint.com/save-top-command-output-to-a-file/) [top](https://david50.pixnet.net/blog/post/45252072-%5B%E7%AD%86%E8%A8%98%5Dlinux---top%E8%B3%87%E8%A8%8A) shell 裡面不能打`|&` ```shell= |& ## 要換成 2>&1 | ``` ## ls color 之前要先把本來的LS_COLORS存下來 ```shell= LS_COLORS='*.c=01;32:*.cpp=31:*.pl=01;35:' export LS_COLORS= ``` [參考](http://linux-sxs.org/housekeeping/lscolors.html) ## count folder of file ```shell= ls -1 | wc -l ``` ## write conda env. in to jupyter ```shell= pip3 install ipykernel python -m ipykernel install --user --name 环境名称 --display-name "Python (env_name)" ``` ## xavier power mode ![](https://i.imgur.com/BGASahA.png) ## find word in text ```shell= grep -rnw '/path/to/somewhere/' -e 'pattern' ``` ## install jetson 4.3 error 如果安裝L4T有問題或是 apt get error 需要將欲安裝的jetson apt update upgrade 才可以順利安裝 ## zip multi threads ```shell= tar -cv -T file_list.txt |pigz -1 -p 32 > n0001.tar.gz # unzip tar xzvf *.tar.gz pigz -dc target.tar.gz | tar xf - tar cf - paths-to-archive | pigz > archive.tar.gz ``` ## ImportError: cannot import name 'PILLOW_VERSION' from 'PIL' ![](https://i.imgur.com/EhagGfO.png) ## ls sort by extension ```shell= ls -X (ls sort=extension) ``` ## 很酷看cpu-usage ```shell= watch -n1 "cat /proc/cpuinfo | grep 'MHz' | awk '{print $1}'" ``` ## 在bash裡隨機挑選file ```bash= ls|shuf -n 20 ``` 範例 ```bash= scp `ls|shuf -n 20` me7122-2@140.124.32.122:/home/me7122-2/CHOU/ps44tairoa/image/val/n0001 ``` b https://reader.elsevier.com/reader/sd/pii/S0019057816000422?token=CDB05B140601E0A481042F1ADFF1E2B7A9E8B77467BA6B29AF197AF39ABAF166F3FF9E1AD3FFBF1A049CC5D9F658FCEB docker run --gpus=1 --rm -p8000:8000 -p8001:8001 -p8002:8002 -v/home/me7122-2/Yan/triton-inference-server/docs/examples/model_repository:/models nvcr.io/nvidia/tritonserver:20.06-py3 tritonserver --model-repository=/models ## RDP https://medium.com/@riley.kao/wsl2-ubuntu20-04-gui-remote-desktop-connection-rdp-2bbd21d2fa71#:~:text=%23%20xce4%0Astartxfce4-,Enable%20dbus,-sudo%20systemctl%20enable ```shell= sudo systemctl enable dbus sudo /etc/init.d/dbus start sudo /etc/init.d/xrdp start ``` ## 你好

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