update OA

README.md

@@ -275,4 +275,7 @@
 49. [hadoop](src/hadoop/README.md) hadoop分布式计算平台
 50. [TCP/IP](src/TCPIP/README.md) TCP/IP协议相关
 	- [MQTT](src/TCPIP/MQTT/README.md) 消息队列遥测传输协议
-51. [Docker](src/Docker/README.md) Docker相关
+51. [Docker](src/Docker/README.md) Docker相关
+52. [OA](src/OA/README.md)
+	- [file2pdf](src/OA/file2pdf.md) 文件转PDF
+	- [install fonts](src/OA/install_fonts.md)安装中文字体 	

src/OA/README.md

@@ -0,0 +1,2 @@
+## OA开发笔记
+- [文件转pdf](file2pdf.md)

src/OA/file2pdf.md

@@ -0,0 +1,13 @@
+## file2pdf
+- jdk
+	- 下载地址：https://www.oracle.com/technetwork/java/javase/downloads/index.html
+	- 安装:
+
+    		rpm -ivh jdk-11_linux-x64_bin.rpm
+- openoffice(依赖jdk)
+- unoconv
+	- 下载rpm包：http://www.rpmfind.net/linux/rpm2html/search.php?query=unoconv
+	- 安装rpm
+- gotenberg服务
+	- 项目地址：https://github.com/thecodingmachine/gotenberg
+	- [配置文件示例](gotenberg.yml)

src/OA/gotenberg.yml

@@ -0,0 +1,60 @@
+# The port the application will listen to.
+port: 3000
+
+logs:
+  # Accepted values, in order of severity: DEBUG, INFO, WARN, ERROR, FATAL, PANIC.
+  # Messages at and above the selected level will be logged.
+  level: "DEBUG"
+
+  # Accepted values: text, json.
+  # When a TTY is not attached, the output will be in the defined format.
+  formatter: "json"
+
+# You don't like a library which is used for a conversion? You want to handle a new file type?
+# You may provide here your own implementation!
+commands:
+
+  # Some libraries like unoconv cannot perform concurrent conversions. That's why the API does only one conversion at a time.
+  # If your current implementation uses libraries which are able to perform concurrent conversions, you may
+  # change this value to false.
+  lock: true
+
+  # Unlike others commands' templates, you have access to FilesPaths instead of FilePath: it gathers all PDF files which should be merged.
+  merge:
+    template: "pdftk {{ range $filePath := .FilesPaths }} {{ $filePath }} {{ end }} cat output {{ .ResultFilePath }}"
+    interpreter: "/bin/sh -c"
+    timeout: 300
+
+  # You may add more commands (or less, or even none).
+  conversions:
+
+      # The command template: you have access to FilePath and ResultFilePath variables.
+    - template: "markdown-pdf {{ .FilePath }} -o {{ .ResultFilePath }}"
+      # The binary which will call the command.
+      interpreter: "/bin/sh -c"
+      # Duration in seconds after which the command will be killed if it has not finished.
+      timeout: 300
+      # Files with the following extensions will be converted by the current command.
+      extensions:
+        - ".md"
+
+    - template: "xvfb-run -e /dev/stdout wkhtmltopdf {{ .FilePath }} {{ .ResultFilePath }}"
+      interpreter: "/bin/sh -c"
+      timeout: 300
+      extensions:
+        - ".html"
+        - ".htm"
+
+    - template: "unoconv --format pdf --output \"{{ .ResultFilePath }}\" \"{{ .FilePath }}\""
+      interpreter: "/bin/sh -c"
+      timeout: 300
+      extensions:
+        - ".doc"
+        - ".docx"
+        - ".odt"
+        - ".xls"
+        - ".xlsx"
+        - ".ods"
+        - ".ppt"
+        - ".pptx"
+        - ".odp"

src/OA/install_fonts.md

@@ -0,0 +1,13 @@
+## install fonts 安装字体
+- jdk
+	- 下载地址：https://www.oracle.com/technetwork/java/javase/downloads/index.html
+	- 安装:
+
+    		rpm -ivh jdk-11_linux-x64_bin.rpm
+- openoffice(依赖jdk)
+- unoconv
+	- 下载rpm包：http://www.rpmfind.net/linux/rpm2html/search.php?query=unoconv
+	- 安装rpm
+- gotenberg服务
+	- 项目地址：https://github.com/thecodingmachine/gotenberg
+	- [配置文件示例](gotenberg.yml)

src/Shell/exit_code.md

@@ -0,0 +1,12 @@
+## exit code 退出码
+
+| 退出码的值|含义|	例子|	注释|
+|-----|-------|-------|-------|
+|1 |通用错误|`let "var1 = 1/0"`|	各种各样的错误都可能使用这个退出码, 比如"除0错误"|
+|2|shell内建命令使用错误(Bash文档上有说明)||	 	很少看到, 通常情况下退出码都为1|
+|126|命令调用不能执行| 	|程序或命令的权限是不可执行的|
+|127|"command not found"|	 	|估计是$PATH不对, 或者是拼写错误|
+|128|exit 的参数错误|exit 3.14159	|exit只能以整数作为参数, 范围是0 - 255(见脚注)|
+|128+n|信号"n"的致命错误|kill -9 |脚本的$PPID	$? 返回137(128 + 9)|
+|130|用Control-C来结束脚本||Control-C是信号2的致命错误, (130 = 128 + 2, 见上边)|
+|255*|超出范围的退出状态|exit -1	|exit命令只能够接受范围是0 - 255的整数作为参数|