In June 28th, 2022 the major version of Vim 9.0 was officially released. You can download Vim 9.0 for appropriate platform at https://www.vim.org/download.php.

Download latest source code from GitHub by git clone https://github.com/vim/vim.git.

The installation procedure from source code: (You should have Python3 already installed in your Linux system.)

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一、禁止用户登录

1、修改用户配置文件/etc/shadow
将第二栏设置为“*”，如下。那么该用户就无法登录。但是使用这种方式会导致该用户的密码丢失，也就是当你再次允许他登录的时候，你还得让他重新设置密码。（再次启用这个帐号的方法是把“*”去掉就可以了）
如：tom:*:14245:0:99999:7:::

为了使原密码不丢失，可以在原密码前面加一个特殊字符，比如”!”。需要再次启用这个用户的方法是删除此感叹号”!”。

2、使用命令usermod
这个方式简单又实用，而且没有（1）中的副作用。

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usermod -L tom##Lock 帐号tom
usermod -U tom##Unlock 帐号tom

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Functional Safety

Solution

• Open in Explorer: C:\Users\xxx\AppData\Roaming\Typora
• Sort by date
• Delete latest two files: profile.data and typora.log

Updated on 7/16/2022
The above solution doesn’t work any longer. Luckily we have a “patch” by doing follows.
Win+R - regedit - Computer\HKEY_CURRENT_USER\Software\Typora

• Right click on the folder of “Typora”
• Select “Permissions…”
• Select “Administrators”
• Deny all check boxes

1. Win+R -> regedit

2. Goto
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FolderDescriptions

3. Change the string value of “ThisPCPolicy” from “Show” to “Hide” in following domains
Pictures: {0ddd015d-b06c-45d5-8c4c-f59713854639}\PropertyBag
Videos: {35286a68-3c57-41a1-bbb1-0eae73d76c95}\PropertyBag
Downloads: {7d83ee9b-2244-4e70-b1f5-5393042af1e4}\PropertyBag
Music: {a0c69a99-21c8-4671-8703-7934162fcf1d}\PropertyBag
Documents: {f42ee2d3-909f-4907-8871-4c22fc0bf756}\PropertyBag

4. New a string value of ThisPCPolicy = “Hide” in following domain
Desktop: {B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\PropertyBag

1. Cats Kill Between 1.3 and 4 Billion Birds Annually

Estimating exactly how many birds are killed by cats is difficult. Many studies have tried, and not all of them are based on rigorous scientific estimation.

Particular cats kill more birds than others, so it doesn’t make sense to multiply the number of cats by an average “bird kill rate” and call it a day.

One of the newest studies to be published estimates the kill rate to be around 1.3 to 4 billion birds. They used a systematic method for calculating this rate, taking different feline predatory rates into account.

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» Previous one

1. Download Python source tarball for your specific version

https://www.python.org/downloads/source/

2. Unpack the tarball and install

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root@localhost# tar xvf Python-3.10.4.tgz
root@localhost# cd Python-3.10.4
root@localhost# ./configure --enable-optimizations
root@localhost# make altinstall

3. Set the new version by default

For individual user: alias python '/usr/local/bin/python3.10'
For system-wide activation: update-alternatives

4. Check the new installation

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jim@localhost% python --version

If there are several versions of a tool installed in Redhat. Use command update-alternatives for prioritization.

For instance with Python, saying Python 2.6, 2.7 and 3.6 versions are installed. With root following bundle of commands activates Python3.6 to be the system-wide default version.

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root@localhost# update-alternatives --display python
root@localhost# update-alternatives --install /usr/bin/python python /usr/bin/python2.6 1
root@localhost# update-alternatives --install /usr/bin/python python /usr/local/bin/python2.7 2
root@localhost# update-alternatives --install /usr/bin/python python /usr/local/bin/python3.6 3
root@localhost# update-alternatives --display python
/usr/bin/python2.6 - priority 1
/usr/local/bin/python2.7 - priority 2
/usr/local/bin/python3.6 - priority 3
Current 'best' version is /usr/local/bin/python3.6.