原创 Ubuntu apt source change
lake@Ubuntu:~$ sudo vi /etc/apt/sources.list 1,$s/security.ubuntu/mirrors.aliyun/g :1,$s/archive.ubuntu/mirrors.al
原创 busybox/arm/docker image run on X86 through qemu-static/user mode
lake@localhost:~$ ~/usr/bin/qemu-arm -version qemu-arm version 4.2.0 Copyright (c) 2003-2019 Fabrice Bellard and the Q
原创 find/linux/shell OR/AND
$find . -name "*.c" -o -name "*.cpp" ./library/Mapping.c ./library/Communicator.cpp Arg: -a -and - opera
原创 docker login file ~/.docker/config.json
Note 1. Avoid docker login, you can copy ~/.docker/config.json from other machine to avoid login fail!! 2. "auth":
原创 Python/pip/docker-compose install on Debian8/ARMhf/32bit (docker version 18.06.3-ce)
Python/pip/docker-compose 1. apt install python-pip 2.yum -y install python-pip 3. get-pip.py curl https://boot
原创 Read text file/loop for each line/ Linux shell
Example 1 : #!/bin/bash while read line do echo $line done < yourfileinputpath.txt Example 2: #!/bin/bash for l
原创 Linux/shell/sort
cat ~/tmp/output.txt unitStatus 23 2 isoMode 99 5 isoModeConfig 3 1 occupied 17 4 minValue 104 3 maxValue 7
原创 git branch local/remote set/unset
git fetch <remote> <sourceBranch>:<destinationBranch> git branch --set-upstream Example: git branch --set-upstream-t
原创 git search files
### find all *.pyc files in all commits git log --all --name-only --pretty=oneline *.pyc ### find all *.jpg files
原创 docker-compose start ==>pull and start multiply container from docker-compose.yml(edgex-objectbox)
### Env Administrator@Win10 MINGW64 /c/work/T3/edgex-x86-4bit/windows-docker-compose-lake-test $ docker version Clien
原创 aosp/ota/incremental update package/安卓 7aosp代碼增量升級包
make otapackage out/target/product/aosp/aosp-ota-eng.lake.zip ===> full update , NOT used for incremental package Ba
原创 git gc/clean/pack
rm -Rf .git/refs/original git reflog expire --expire=now --all git gc --prune=now --aggressive --force
原创 Kernel debug printk
$ cat /proc/sys/kernel/printk 7 4 1 7 current default minimum boot-time-default The first integer
原创 Android/Kernel TP Debug Sleep-suspend/Wakeup
Android/TP/debug 130|peony:/ # getevent -l add device 1: /dev/input/event1 name: "qpnp_pon" could not get driv
原创 Android-adb-setting
Refer to https://developer.android.com/reference/android/provider/Settings.Global 1. ### default timeout of PowerManag