打开命令行、拷贝 unstall 系统备份dpkg –get-selections |grep firefox
压缩虚拟机方法：sudo vmware-toolbox-cmd disk shrink /
window下进入命令行快捷键“WIN+shift+s”即可截图；
window下进入命令行快捷键“WIN+R”即可打开终端窗口；
linux下进入命令行快捷键“Ctrl+Alt+T”即可打开终端窗口；
输入uname – a，lsb_release -a, cat /etc/issue
在root下创建一个root, 将原来的root下的内容全部拷贝过来
john@john-virtual-machine:~/ultra96$ sudo cp -r /home/john/ultra96/root/root/root /media/john/root/root
若dir2存在，则用下面的命令
cp -r dir1/. dir2
去锁 sudo chown 用户名 文件夹/ -R
没有光标，输入命令 echo -e “\033[?25h”
tar -cvpzf /backup.tar.gz –exclude=/tmp –exclude=/backup.tar.gz –exclude=/sys –exclude=/proc –exclude=/lost+found –exclude=/tmp /
sudo tar -zcvf /home/john/petalinux_project/kv260_image/root/rootfs.tar.gz ./
sudo tar -zxvf /home/john/petalinux_project/kv260_image/root/rootfs.tar.gz -C /media/john/root
sudo tar –skip-old-files -zxvf root2511.tar.gz -C ./dec7c1d5-55e1-4223-abfd-13a587eaadfa1
zip -r test.zip tmb/
unzip -o test.zip -d tmp/
dpkg –get-selections |grep firefox
sudo apt-get purge all packages above
netsh interface ip set address “WLAN” static 192.168.1.10 255.255.255.0 192.168.0.1 1
netsh interface ip set address “以太网” static 192.168.86.10 255.255.255.0 192.168.86.1 1
我的PYNQ Z2用户名密码均为xilinx，IP地址192.168.0.99
我的Ultra96用户名root, 密码xilinx, IP地址192.168.1.15
cat /etc/issue 查看系统版本
cat /etc/lsb-release 查看 Ubuntu 版本信息 cat /proc/version 查看 Linux 核心、GCC 版本信息
root@xilinx-zcu104-2021_2:~# service networking restart
root@xilinx-zcu104-2021_2:~# /etc/init.d/networking restart
root@xilinx-zcu104-2021_2:~/Vitis-AI/demo/VART# wget https://www.xilinx.com/r2.0.0_image_video.tar.gz –no-check-certificate
PS C:\xilinx\boot cp> scp 50-cloud-init.yaml ubuntu@192.168.86.110:/home/ubuntu
sudo -H rm ~/.config/geany/geany_socket_*
查找
看磁盘 df -h
看文件夹 du -sh
find . -type d
find . -type d -name src
find . -type d -maxdepth 1
find ./ -name “*.txt” | xargs grep “Base”
ls -l | grep ‘^d’
ls -F | grep “/
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https://blog.csdn.net/hobertony_7/article/details/45147473
ls -F | grep “/$” | grep “rc”
find . -type d -name “*src”
通过命令du -h –max-depth=1 *，可以查看当前目录下各文件、文件夹的大小，这个比较实用。
如果只想查看指定目录的总大小，可以使用du -sh 目录名称。
加-i 参数直接用 {}就能代替管道之前的标准输出的内容；
find . -type f -name “
.log” | xargs -i cp {} /tmp/k/
加 -I 参数 需要事先指定替换字符。
find . -type f -name ”
.log” | xargs -I {} cp {} /tmp/n/
ls | tail -11| xargs -i cp -r {} /tmp/
拷贝最后11个文件到根目录的/tmp/下（如要拷贝头5个文件，则将tail -11 换成 head -5）
ls | head -1999 | xargs -i cp -r {} ../holdout_images
ls | head -1999 | xargs -i cp -r {} ../val
ls ../holdout_images/*.JPEG | head -10 | xargs -i cp -r {} .
john@john-virtual-machine:~/ultra96v2DPU/build/downloads$ ll -d git2
drwxr-xr-x 97 john john 20480 4月 20 01:52 git2/
echo ‘source
/petalinux2019.2/settings.sh’>>
/.bashrc
petalinux
拷入SD文件
petalinux-package –boot –format BIN –fsbl images/linux/zynq_fsbl.elf –fpga images/linux/system.bit –u-boot –force
sudo cp images/linux/{BOOT.BIN,image.ub,system.dtb} /media/john/BOOT
sudo rm -r /media/john/root/*
sudo tar -zxvf images/linux/rootfs.tar.gz -C /media/john/root
file:///mnt/hgfs/downloads_2019.2/downloads
/mnt/hgfs/sstate_aarch64_2019.2/aarch64
petalinux-create -t project -n ultra96v2DPU -s ./ultra96v2_petalinux2019.2.bsp
petalinux-create -t project -n kv260_2021 -s ./xilinx-k26-som-v2021.2-final.bsp
petalinux-create -t project -n petalinux –template zynqMP
petalinux-package –bsp -p –output MY.BSP
petalinux-package –boot –fsbl zynqmp_fsbl.elf –u-boot u-boot.elf –pmufw pmufw.elf –fpga system.bit –force
vivado -mode tcl
ls -al /bin/sh
sudo rm /bin/sh
ln -s /bin/bash /bin/sh
ls -al /bin/sh
出现不能启动，可能是SD损坏，不一定是程序问题
sudo fdisk –list
umount /media/john/root （不要加sudo)
sudo fsck.ext4 -y /dev/sdb2
sudo rm -r /media/john/rootfs
grep “dpu” *.dtsi
xilinx@pynq:~$ cat /proc/version
Linux version 4.19.0-xilinx-v2019.1 (oe-user@oe-host) (gcc version 8.2.0 (GCC)) #1 SMP Sat Oct 12 00:54:10 UTC 2019
xilinx@pynq:~$ uname -a
Linux pynq 4.19.0-xilinx-v2019.1 #1 SMP Sat Oct 12 00:54:10 UTC 2019 aarch64 aarch64 aarch64 GNU/Linux
xilinx@pynq:~$ lsb_release -a
No LSB modules are available.
Distributor ID: pynqlinux
Description: PYNQ Linux, based on Ubuntu 18.04
Release: v2.5
Codename: glasgow
sudo dpkg-reconfigure bash
sudo apt-get update
echo ‘source
/petalinux2019.2/settings.sh’>>
/.bashrc
ls -al /bin/sh
sudo rm /bin/sh
ln -s /bin/bash /bin/sh
ls -al /bin/sh
should now point to bash
镜像操作
docker images
docker ps -a 命令是用来展示所有的容器，包括未运行的容器
docker image ls
docker stop ID
docker rm ID
docker rmi -f ID
docker ID name/name
john@john-wang:~/Vitis-AI_1.2$ docker save -o cpu.tar xilinx:cpu
john@john-virtual-machine$ docker load -i /mnt/hgfs/xilinx/cpu.tar
docker commit [选项] <容器ID或容器名> [<仓库名>[:<标签>]]
john@john-wang:~/Vitis-AI_1.2$ docker commit -p funny_kepler xilinx:gpu
docker commit 容器必须是停止的吗？docker容器自己提供有commit的功能，如果Docker commit 将容器保存为一个新的镜像，是要先退出容器的。
我认为既可以退出保存，也可以用-p暂停保存，暂时只试了-p保存。
python dos操作
os.getcwd()
更改当前目录
os.chdir()
os.listdir(.)
jupyter nbconvert –to script smartcam_file.ipynb
A program like MobaXTerm for Linux systems (SFTP GUI browser & terminal)
https://snapcraft.io/install/snowflake/ubuntu
sudo apt update
sudo apt install snapd
sudo snap install snowflake
镜像
github镜像
git clone https://github.com/pjreddie/darknet.git 用下面的代替
git clone https://github.com.cnpmjs.org/pjreddie/darknet.git
git clone https://gitclone.com/github.com.cnpmjs.org/pjreddie/darknet.git
清华镜像源
命令行执行完事
pip3 install -i https://pypi.tuna.tsinghua.edu.cn/simple pip -U
pip3 config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
修复磁盘
john@john-virtual-machine:/media/john$ sudo umount /dev/sdb2
john@john-virtual-machine:/media/john$ sudo e2fsck -y /dev/sdb2
snap install –classic notepadqq
cache所在位置和清除
john@john-virtual-machine:/$ sudo find /home -size +2000000k
/home/john/.cache/vmware/drag_and_drop/FQwSfJ/0325.tar.gz
/home/john/.cache/vmware/drag_and_drop/gnygAD/downloads_2020.2.tar.zip.002
/home/john/.cache/vmware/drag_and_drop/gnygAD/downloads_2020.2.tar.zip.001
cd /home/john/.cache/vmware/drag_and_drop/gnygAD
john@john-virtual-machine:~/.cache/vmware/drag_and_drop/gnygAD$ ll
total 16693264
drwx—— 2 john yxg 4096 4月 11 15:39 ./
drwx—— 45 john yxg 4096 4月 11 14:20 …/
-rwxrw-rw- 1 john yxg 8546942976 4月 11 14:30 downloads_2020.2.tar.zip.001*
-rwxrw-rw- 1 john yxg 8546942976 4月 11 14:30 downloads_2020.2.tar.zip.002*
OPENCV版本
pkg-config –modversion opencv
netsh interface ip set address “以太网” static 192.168.5.10 255.255.255.0 192.168.5.1
python print
print(‘{0},{1}’.format(‘zhangk’, 32))
print(‘{},{},{}’.format(‘zhangk’,‘boy’,32))
print(‘{name},{sex},{age}’.format(age=32,sex=‘male’,name=‘zhangk’))
PI=3.1415926
print(“PI=%.
f”%(3,PI))
#用
从后面的元组中读取字段宽度或精度,可以读取出来精度是3位
#PI=3.142
#没有指定宽度，所以不需要缩进
print(“PI=%
.3f”%(10,PI)) #精度为3，总长为10.
#PI= 3.142
#
所处的位置不同，读取的内容也不同
PI=3.1415926
print(‘%-10.3f’ %PI) #左对齐，还是10个字符，但空格显示在右边。
#3.142
pip3 –trusted-host pypi.python.org install tensorflow
xilinx-k26-starterkit-2021_1:/etc/network$ sudo vi interfaces
auto eth0
iface eth0 inet static
address 192.168.86.27
gateway 192.168.86.1
netmask 255.255.255.0
dns-nameservers 8.8.8.8