May 6, 2015

hg change history

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hg rebase , hg histedit , hg graft , hg strip , hg strip --keep , and hg commit --amend .
April 30, 2015

vim ctags tags path

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This line in your ~/.vimrc should help: set tags=./tags,tags;$HOME It tells Vim to look for a tags file in the directory of the current...
April 27, 2015

golang win32 UI

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https://github.com/lxn/walk OR https://github.com/AllenDang/gform OR https://github.com/andlabs/ui
April 23, 2015

USB terms

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In the USB world, the most basic data transfer is done in packet, but to understand the on-the-wire protocol, there are other things to unde...
April 22, 2015

prevent ssh client timeout

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Add this in /etc/ssh/ssh_config for Linux and ~/.ssh/config for Mac: Host * ServerAliveInterval 120

linux cp without overwrite

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You can use "-n" option. If you are on a embedded linux box with busybox, it does not have that option. You can this instead: ...
April 16, 2015

Vim show C function name

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Put this in your .vimrc file, and use key "f" to show current function name: fun! ShowFuncName()   let lnum = line("....
April 15, 2015

golang combine static data (css/js/images/) with binary file

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https://github.com/tiebingzhang/statik  (zip the contents and compiled it into go source code, very small code base, this is a github fork w...
April 14, 2015

script to detected unused C files

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If you have a large project with a lot of C files, once you compiled them, you will end up with a lot of .o files. Then you can use the .o f...
March 12, 2015

cmake add include path and library path

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Some tips for cMake beginners. This is done on Linux. How to use cMake cmake generates a bunch of intermediate files, including the fina...
March 11, 2015

AT&T Data plan web page

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https://buyasession.att.com

Linux running 4G LTE modem

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The modem I have is Sierra Wireless Air Prime MC7453 Mini PCI Express Module.  The carrier I tested is AT&T. Before running on Linux, ...
6 comments:
March 5, 2015

How to get Linux USB Report Descriptor when it says UNAVAILABLE

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Start by plugging in your USB device and running dmesg to get the kernel output for the event. It will look something like this: input: ...

Patch Linux kernel to support Esterline Medigenic keyboard

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The Esterline Medigenic keyboard does not work under stock Linux kernel (as of kernel version 4.0RC). This is because the HID Report Descrip...

memdump function in kernel

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void memdump(unsigned char *rdesc, int *rsize){     int i,pos=0;     unsigned char outbuf[256];     printk(KERN_WARNING "rsize=%d\n...
March 3, 2015

replace systemd with a simple busybox inittab

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1. install busybox 2. create file /etc/inittab with the following content: # Start "rc init" on boot ::sysinit:/opt/rc init #...
February 26, 2015

Golang parse xml simple example

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package main import (         "encoding/xml"         "fmt" ) func main() {         type Email struct {         ...
February 23, 2015

Asynchronous PHP port scanner on Windows

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The following PHP code scans IP range 192.168.204.200 to 192.168.204.254 port 443 in 5 seconds. It's tested on Windows with PHP 5.3, wit...

PHP asynchronous host scanner on Windows

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The following PHP code scans IP range 192.168.5.1-192.168.5.254 in 3 seconds and returns the reachable hosts. <?php $timeout=3; func...
February 18, 2015

use stunnel for ssl proxy

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stunnel.conf: (this setup one server and one client instance) debug = 3 #foreground = yes pid = [server] client = no cert= ./se...