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很惭愧，就做了一点微小的工作

Dash

Install Wordpress on ArchLinux

Apr 14, 2014
Technology

First install wordpress manually:

	cd /srv/http
	wget https://wordpress.org/latest.tar.gz
	tar xzvf latest.tar.gz
	chown -R http wordpress
	chgrp -R http wordpress

Now add a configuration file on wordpress:

	[Trusty@/etc/httpd/conf/extra]$ pwd 
	/etc/httpd/conf/extra
	[Trusty@/etc/httpd/conf/extra]$ cat httpd-wordpress.conf
	Alias / "/srv/http/wordpress/"
	<Directory "/srv/http/wordpress/">
		AllowOverride All
		Options FollowSymlinks
		Order allow,deny
		Allow from all
		php_admin_value open_basedir "/srv/:/tmp/:/srv/http/wordpress/:/usr/share/webapps/:/etc/webapps:$"
	</Directory>

In /etc/httpd/conf/httpd.conf file, add:

	# Include wordpress configuration
	Include conf/extra/httpd-wordpress.conf

Create the Wordpress Database and User

	mysql -u root -p
	CREATE DATABASE wordpress;
	CREATE USER wordpressuser@localhost;
	SET PASSWORD FOR wordpressuser@localhost= PASSWORD("password");
	GRANT ALL PRIVILEGES ON wordpress.* TO wordpressuser@localhost IDENTIFIED BY 'password';
	FLUSH PRIVILEGES;
	exit

Configure the configuration file:

	cp ~/wordpress/wp-config-sample.php ~/wordpress/wp-config.php
	sudo nano ~/wordpress/wp-config.php
	// ** MySQL settings - You can get this info from your web host ** //
	/** The name of the database for WordPress */
	define('DB_NAME', 'wordpress');
	
	/** MySQL database username */
	define('DB_USER', 'wordpressuser');
	
	/** MySQL database password */
	define('DB_PASSWORD', 'password');

Configure the php.ini:

	sudo nano /etc/php/php.ini
	extension=mysql.so
	sudo systemctl restart httpd

Then visit the url of http://localhost/, install the wordpress and begin to customize.

Switch To ZSH

Apr 14, 2014
Technology

###Installation In ArchLinux, install zsh via:

	pacman -S zsh zsh-doc

Duplicate the .bashrc to .zshrc

	cp ~/.bashrc ~/.zshrc

But notice, when using zsh, we should use following command under zshh:

	rake new_post["Switch To ZSH"] 
	to 
	rake new_post\["Switch To ZSH"\]

Or, we can use noglob in zsh specified file .zshrc

	alias rake='noglob rake'

###Setting More settings on .zshrc:

# Use prompt -l you will see all of the prompt. 
autoload -U promptinit
promptinit
alias rake='noglob rake'
# Customized PS1, with color. 
export PS1="[%n@%~]$ "

###Terminal Title Terminal Title Setting, add following lines into ~/.zshrc:

case $TERM in
  (*xterm* | rxvt)

    # Write some info to terminal title.
    # This is seen when the shell prompts for input.
    function precmd {
      print -Pn "\e]0;zsh%L %(1j,%j job%(2j|s|); ,)%~\a"
    }
    # Write command and args to terminal title.
    # This is seen while the shell waits for a command to complete.
    function preexec {
      printf "\033]0;%s\a" "$1"
    }

  ;;
esac

###Enable History Add the definition of history

# History File Definition
HISTFILE=~/.histfile
HISTSIZE=1000
SAVEHIST=1000
# Share history between terminal
setopt inc_append_history
setopt share_history

###Chinese Encoding Add following definition to the .zshrc:

	export LC_ALL=en_US.UTF-8 
	export LANG=en_US.UTF-8

And in the terminal simulator, select the encoding:

	Edit->Preference: Advanced->Encoding->Default Encoding(UTF-8)

Command and Conquer 2

Apr 9, 2014
Technology

Position

From FullCircle issue 24, to issue 55

C&C 11

This chapter tells you how to automatical your tasks using crontab.
Useful commands

	find /var/logs/ -name "*.log" | while read line; do cat "${line}"; done
	sudo crontab -e root

crontab format:

Example:
*/5 * * * * command Every 5 minutes
00 18 * * sun command Every Sunday at 6

C&C 12

This Chapter tells you how to use different shell, and its history, functions.

C&C 13

This chapter tell you how to listen music using MOC(Music On Console), and use IRC under terminal(irssi), later I will install them and try.

C&C 14

This chapter introduce how to change you prompt,(export PS1), some useful tools, for example:
“watch vmstat” will display the vmstat every 2 seconds.
Tiling window manager, awesome, DWM, Xmodnad, ratpoison, ion, etc.
Live-Office?

C&C 15

This chapter take ping for example and show you how to use man and help.

C&C 16

This chapter shows how to detect and bind keys.
xev for X, showkey for terminal, for detecting keys.
.Xmodmap for key definition, keycode 153 = XF86MonBrightnessDown
/usr/include/X11/keysymdef.h contains all of the list of the symbols, extra function keys in /usr/include/X11/XKeySymDB
Further Reading: http://people.freedesktop.org/~hughsient/quirk/quirk-keymap-index.html

C&C 17

This chapter shows disk usage skills.

C&C 18

This chapter introduce harddisk and S.M.A.R.T

C&C 19

This chapter introduct screen, remember use ctlr+a /d for detaching the session.

C&C 20

This chapter continue introducing screen, for sharing session:
ctrl + a :multiuser on ctrl+a :acladd
Other user connect via screen -x $USER/<screenID/name>
Other different commands.

C&C 21

Introducing Tmux for remote usage.Also byobu is introduced.

C&C 22

Switch to ZSH, need to re-read after back.

C&C 23

Colorscheme, need to re-read after back.

C&C 24

Talks on how to set ssh proxy.

C&C 25

gstm of GUI program which did ssh port forwarding.
diff usage

C&C 26

wget and curl, use it according to your own habit.

C&C 27

Network Configuration.

C&C 28

fdisk, find, etc.

C&C 29

Classic Command List.

C&C 30

Language for System.

C&C 31

conky skills, let conky display how many updates available.

C&C 32

Conky skills, his conky could display the listening music and album picture.But how about the pandora?

C&C 33

Conky skills, to-do and the zenity for creating the diaglog.

C&C 34

zenity configuration, MPD daemon.

C&C 35

Asia Language support, in fact we are much more professionaler than the author :)

C&C 36

Use of graphicmagic, which derived from imagik from 2002, try it later.

C&C 37

Latex Introduction.

C&C 38

Issue 51, damaged.

C&C 40

Latex continued.

C&C 41

/etc/motd(Message Of The Day)

C&C 42

vim/gvim, notice some command, and author’s vimrc file.

C&C 43

Advance usage of vi/vim , TBD

Command and Conquer 1

Apr 8, 2014
Technology

###Position: From FullCircle 13, Ended at FullCircle 23.
###C&C 1 Try to run following command:

man man
man -k PDF
man apropos
apropos PDF
man --help

Fastly get help from manual, for example, following command will let you dive into regex:

man -k regex
re_comp (3)          - BSD regex functions
re_exec (3)          - BSD regex functions
regcomp (3)          - POSIX regex functions
regerror (3)         - POSIX regex functions
regex (3)            - POSIX regex functions
regex (7)            - POSIX.2 regular expressions
regexec (3)          - POSIX regex functions
regfree (3)          - POSIX regex functions

###C&C 2 This part describe how to come and go into the directory. ###C&C 3 This part describe how to copy and move the file.
###C&C 4 This part introduce the nano and vim. Remember one: :e in vim means edit another file.
###C&C 5 This part introduce aptitude, Notice the comment of the aptitude search result:

  1. p, No trace of the package exists on the system.
  2. c, The package is deleted, but its configuration file is still on the system.
  3. i, The package is installed.
  4. v, The package is virtual.
    And one command: sudo aptitude safe-upgrade.
    ###C&C 6 This part shows how to find something in your system.
  5. grep, “grep -n”(print line number), “grep -ir”(recursively and ignore case).
  6. *, difference of “echo ” and “echo ‘'".
  7. xargs,
find recipes -type f -name '*-cake.txt' | xargs -I % cp % old-recipes/
find recipes -type f -name '*-cake.txt'
recipes/a-cake.txt
recipes/b-cake.txt
recipes/c-cake.txt
cp recipes/a-cake.txt old-recipes/
cp recipes/b-cake.txt old-recipes/
cp recipes/c-cake.txt old-recipes/
  1. updatedb and locate.
    ###C&C 7 The author talks lots on why you should not fear terminal.
    ###C&C 8
  2. cut way:
Trusty@HN:~/code/purec/FC/C8$ cat /etc/issue
Ubuntu 13.04 \n \l

Trusty@HN:~/code/purec/FC/C8$ cat /etc/issue|head -n 1
Ubuntu 13.04 \n \l
Trusty@HN:~/code/purec/FC/C8$ cat /etc/issue|head -n 1|cut --delimiter=" " -f 1,2
Ubuntu 13.04
  1. sed way:
Trusty@HN:~/code/purec/FC/C8$ cat /etc/issue | sed '{s/\\n//}'
Ubuntu 13.04  \l

Trusty@HN:~/code/purec/FC/C8$ cat /etc/issue | sed '{s/\\n//; s/\\l//;}'
Ubuntu 13.04  

Trusty@HN:~/code/purec/FC/C8$ cat /etc/issue | sed '{s/\\n//; s/\\l//;/^$/d}'
Ubuntu 13.04
  1. awk way:
Trusty@HN:~/code/purec/FC/C8$ cat /etc/issue | awk '/\\n/ {print $1,$2}'
Ubuntu 13.04

First find any line which have ‘\n’ in it, then print this line’s $1 and $2.
4. Further reading
http://fullcirclemagazine.org/issue-21-shell-script/
Sed -http://www.grymoire.com/Unix/Sed.html
awk -http://www.linuxjournal.com/article/8913 or http://www.linuxfocus.org/English/September1999/article103.html
cut -http://learnlinux.tsf.org.za/courses/build/shell-scripting/ch03s04.html
###C&C 9 This part introduced the ffmpeg and imagick.
Since the internet is not OK, I cannot install the package, try them later.
###C&C 10 This part is very useful, it shows some system administration tools.

  1. bootchart, install via “sudo apt-get install bootchart”, then in /var/log/bootchart/ you will see the correct image.
  2. sudo lshw will list all of the hw info, sudo lshw -C Network will list all of the infos on networking.
  3. Further reading: http://www.troubleshooters.com/tpromag/200007/200007.htm

Programming in C of FC tutorial 6

Apr 8, 2014
Technology

###Full Circle C 8 ####Limitation Fibonacci sequence: normally this program limited by the limitation of unsigned long long

#include <stdio.h>

typedef unsigned long long fibo_type;
#define FIBO_FORMAT "%10llu"

void printFibo(fibo_type num)
{
        printf(FIBO_FORMAT, num);
}

int main()
{
        int num = 0;
        fibo_type a = 0, b=1, c;

        printf("%4d: ", ++num);
        printFibo(a);
        printf("\n");

        printf("%4d: ",++num);
        printFibo(b);
        printf("\n");

        c=a+b;
        while(c>=b)
        {
                printf("%4d: ",++num);
                printFibo(c);
                printf("\n");
                a=b;
                b=c;
                c=a+b;
        }

        printf("Stopped after %d digits\n", num);
        printFibo(c);
        printf("\n");
        return 0;
}

This program will exit when c reach the limitation of definition of unsigned long long ####Using GMP Using gmp to re-write this program:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gmp.h>

int main()
{
        int num = 0;
        mpz_t f_1;
        mpz_t f_2;

        mpz_init(f_1);
        mpz_init(f_2);
        mpz_set_ui(f_1, 0);
        mpz_set_ui(f_1, 1);
        printf("%10d: 0\n", ++num);

        while(1)
        {
                mpz_add(f_1, f_2, f_1);
                mpz_swap(f_1, f_2);
                char *res = mpz_get_str(NULL, 10, f_2);
                printf("%10d: %s\n", ++num, res);
                free(res);
                sleep(1);
        }

        mpz_clear(f_1);
        mpz_clear(f_2);
        return 0;
}

Compile it via:

gcc -o Fibonacci2 Fibonacci2.c -lgmp

This won’t have limitation currently, but you have to finish the execises, when you get internet connection.