dykai edgesider

通过fchdir和getcwd获取文件描述符对应的文件名

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>

int main()
{
 char cwdbuf[4096];

# 有三个显示器
outs = ['e1', 'h1', 'e2']

# 需要得到的数组
[['e1'],
 ['h1'],
 ['e2'],
 ['e1', 'h1'],
 ['e1', 'e2'],

want_touch_pinch=1
want_debug=0
want_temp_profile=0
want_verbose=0
while [ $# -gt 0 ]; do
  case "$1" in
    -h | --help | -help )
      usage
 exit 0 ;;

test "$VERSION" || return 2
test "$FILE_NAME" || return 3

tail -f server_output | ncat -l -p 8888 --keep-open | ncat localhost 8000 >> server_output

这行命令可以将来自8888端口的数据转发到localhost:8000。

Update

mkfifo fifo
cat fifo | ncat -l -p 8888 | pv | ncat localhost 8000 > fifo

在crontab中直接使用notify-send不会起作用，因为在crontab执行的shell里，缺少一个$DBUS_SESSION_BUS_ADDRESS变量，运行时设置以下这个变量就行了。

export DBUS_SESSION_BUS_ADDRESS='unix:path=/run/user/1000/bus'

	#! /usr/bin/env python3

	# change wallpaper every argv[2] seconds
	# photo folder is argv[1]
	# use "kill -s 10 `/tmp/autofeh.pid`" to change by yourself

	import os
	import sys
	import time
	import signal

	protected static TStruct BytesToStruct<TStruct>(byte[] bs, int bs_length) where TStruct : new()
	{
	int typeLen = Marshal.SizeOf(typeof(TStruct));
	IntPtr tmp = Marshal.AllocHGlobal(typeLen); // 分配托管内存
	Marshal.Copy(bs, 0, tmp, bs_length); // 将字节复制到托管内存
	TStruct rv = (TStruct)Marshal.PtrToStructure(tmp, typeof(TStruct));
	Marshal.FreeHGlobal(tmp); // 释放托管内存

	return rv;
	}

	#! /usr/bin/bash
	kquitapp5 plasmashell && kstart5 plasmashell