what is $$

From Advanced Bash-Scripting Guide:

$$ is the process ID (PID) of the script itself.

$BASHPID is the process ID of the current instance of Bash. This is not the same as the $$ variable, but it often gives the same result.

抽筋了

踢完球，晚上睡觉抽筋有感。

不爱可以，没啥，不爱就不爱。但请不要不爱还说爱。

Hung Up Quickly

前天从苏州团建回来，晚上给赛赛拨视频。他正在看电视，也不正眼看我，姥姥让他说啥，他就复述一下。我说你看电视吧，然后他火速把视频给挂了~ :)

团建归来

苏州团建，自驾，30人左右，周四出发，周六下午回来。周经理安排的很妥当，自己就完全不用操心。完美。

民宿也不错，空间挺大，10个人狼人杀，七八个人德州，中间还有人可以打桌球。

中间还吃了日料~

Lazy Log In Python

import logging


def bad_call_with_problem():
    try:
        logging.error("haha %d" % None)
    except:
        print("Raised an error.")
        raise
    print("-" * 10)


def good_call_with_problem():
    try:
        logging.error("haha %d", None)
    except:
        print("This will never be raised.")
        raise
    print("~" * 10)


good_call_with_problem()
bad_call_with_problem()
good_call_with_problem()

专有名词叫 lazy logging，但我没有在官网找到这一块的说明，看到两篇文章如下

https://medium.com/swlh/why-it-matters-how-you-log-in-python-1a1085851205

https://medium.com/flowe-ita/logging-should-be-lazy-bc6ac9816906

Memory

时间从来不是治愈的良药，人才是。#甜蜜蜜#

shell bomb

https://www.cyberciti.biz/faq/understanding-bash-fork-bomb/

vim中自动补全的颜色调整

exec “hi PMenu “ . “ guifg=#” . a:fg . “ ctermfg=” . a:fg

exec “hi PMenu” . “ guibg=#” . a:bg . “ ctermbg=” . a:bg

exec “hi PMenu” . “ gui=” . a:attr . “ cterm=” . a:attr

Unshare

https://man7.org/linux/man-pages/man1/unshare.1.html

The unshare command creates new namespaces (as specified by the command-line options described below) and then executes the specified program. If program is not given, then “${SHELL}” is run (default: /bin/sh).

https://www.youtube.com/watch?app=desktop&v=8fi7uSYlOdc&feature=youtu.be

逃避

当问题不能逃避时，解决问题才是必要的。

如果能逃避的话，逃避多简单啊，逃避本身就是解决问题。