add ls_colors article

content/posts/ls_color/index.zh-cn.md

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+---
+title: "linux terminal 目录的背景色"
+subtitle: ""
+date: 2023-07-12T16:45:30+08:00
+draft: false
+author: ""
+authorLink: ""
+description: "修改LS_COLORS实现对目录背景色的修改"
+keywords: ""
+license: ""
+comment: false
+weight: 0
+
+tags: ["linux"]
+categories: ["笔记"]
+
+hiddenFromHomePage: false
+hiddenFromSearch: false
+
+summary: ""
+resources:
+- name: featured-image
+  src: 109458640_p0.png
+- name: featured-image-preview
+  src: preview.png
+
+lightgallery: true
+
+---
+
+<!--more-->
+## 问题
+{{<image src="example.png" caption="背景色">}}
+平时用terminal的时候，偶尔会遇到这种有背景色的目录，这是因为该路径除了所有者外，还有其他人有权限。在有背景色的情况下，很容易与主题色发生冲突，导致看不清路径名称。修改方案除了调整路径的权限外，还有修改LS_COLORS环境变量。
+
+```bash
+$ echo $LS_COLORS
+di=1;36:ln=35:so=32:pi=33:ex=31:bd=34;46:cd=34;43:su=30;41:sg=30;46:tw=30;42:ow=30;43
+```
+LS_COLORS环境变量由多个键值对用冒号连接而成，每个键值对的结构为`key=val1;val2`，不同值之间用分号连接。其中key为文件的类型缩写，value为对应的颜色编码
+
+## key值表
+| key | dir_colors name | description |
+|--|--|--|
+|no|	NORMAL, NORM|	Global default, although everything should be something|
+|fi|	FILE|	Normal file|
+|di|	DIR|	Directory|
+|ln|	SYMLINK, LINK, LNK|	Symbolic link. If you set this to 'target' instead of a numerical value, the colour is as for the file pointed to.|
+|pi|	FIFO, PIPE|	Named pipe|
+|do|	DOOR|	Door|
+|bd|	BLOCK, BLK|	Block device|
+|cd|	CHAR, CHR|	Character device|
+|or|	ORPHAN|	Symbolic link pointing to a non-existent file|
+|so|	SOCK|	Socket|
+|su|	SETUID|	File that is setuid (u+s)|
+|sg|	SETGID|	File that is setgid (g+s)|
+|tw|	STICKY_OTHER_WRITABLE|	Directory that is sticky and other-writable (+t,o+w)|
+|ow|	OTHER_WRITABLE	Directory| that is other-writable (o+w) and not sticky|
+|st|	STICKY|	Directory with the sticky bit set (+t) and not other-writable|
+|ex|	EXEC|	Executable file (i.e. has 'x' set in permissions)|
+|mi|	MISSING|	Non-existent file pointed to by a symbolic link (visible when you type ls -l)|
+|lc|	LEFTCODE, LEFT|	Opening terminal code|
+|rc|	RIGHTCODE, RIGHT|	Closing terminal code|
+|ec|	ENDCODE, END|	Non-filename text|
+|*.extension|	 	|Every file using this extension e.g. *.jpg|
+
+## value表
+### effects
+|code|property|
+|---|---|
+|00|	Default colour|
+|01|	Bold|
+|04|	Underlined|
+|05|	Flashing text|
+|07|	Reversetd|
+|08|	Concealed|
+
+### colors
+|code|property|
+|---|---|
+|30|	Black|
+|31|	Red|
+|32|	Green|
+|33|	Orange|
+|34|	Blue|
+|35|	Purple|
+|36|	Cyan|
+|37|	Grey|
+
+### backgrounds
+|code|property|
+|---|---|
+|40|	Black background|
+|41|	Red background|
+|42|	Green background|
+|43|	Orange background|
+|44|	Blue background|
+|45|	Purple background|
+|46|	Cyan background|
+|47|	Grey background|
+
+### extra colors
+|code|property|
+|---|---|
+|90	|Dark grey|
+|91	|Light red|
+|92	|Light green|
+|93	|Yellow|
+|94	|Light blue|
+|95	|Light purple|
+|96	|Turquoise|
+|97	|White|
+|100|	Dark grey background|
+|101|	Light red background|
+|102|	Light green background|
+|103|	Yellow background|
+|104|	Light blue background|
+|105|	Light purple background|
+|106|	Turquoise background|
+|107|	White background|
+
+## 修改
+```bash
+export LS_COLORS=${LS_COLORS}'key=val1;val2':
+```