メモ: 12月 2010

2010年12月23日木曜日

去掉注释行,空行.查看yum安装路径.

grep -v '#' httpd.conf.b | grep -v '^$' > httpd.conf
-v 将结果反转

yum -ql mysql

x86_64编译安装PHP出现configure: error: mysql configure failed. Please check config.log的解决方法

编译PHP的时候出下面的错:

checking for mysql_close in -lmysqlclient… no
checking for mysql_error in -lmysqlclient… no
configure: error: mysql configure failed. Please check config.log for more information.

网络上说：安装PHP的时候没有指定一下mysql的安装目录。但是已经指定了，所以这个说法是错误的,其实主要原因是 mysql-level没有装，也就是mysql的版本不对，应该换
mysql-max-5.0.21版本（包含所有mysql相关内容的软件包）

/usr/bin/ld: skipping incompatible /usr/lib/mysql/libmysqlclient.so when searching for -lmysqlclient
/usr/bin/ld: skipping incompatible /usr/lib/mysql/libmysqlclient.a when searching for -lmysqlclient
/usr/bin/ld: cannot find -lmysqlclient
collect2: ld returned 1 exit status
configure: failed program was:
#line 59854 “configure”
#include “confdefs.h”

在看看config.log提示的错….哦.原来是版本有问题.想起我的系统都是X86的,lib都是64位的.所以解决方法很容易.
这个libmysqlclient.a library 是在 /usr/lib64/mysql, 不是在 /usr/lib/mysql.
所以可以做下面的方法来解决
#export LDFLAGS=-L/usr/lib64/mysql

OR
请将Makefile里面的
-L/usr/lib/mysql
改为
-L/usr/lib64/mysql

2010年12月22日水曜日

php 模块追加

1.cd php-5.1.0/ext/zlib/
2.phpize
3../configure -help
4../configure --with-php-config=/usr/local/bin/php-config
5.make
6.make install
7.vi php.ini
extension config
extension_dir = "/usr/local/lib/php/extensions"
extension=zlib.so

ok

2010年12月21日火曜日

postgresql start

pg_ctl -D /usr/local/pgsql/data -l logfile start

sqlplus中删除键乱码

sqlplus中删除键(backspace)乱码.如下:

SQL> select value from v$nls_parameters where parameter='NLS_CHARACTERSET';

VALUE
----------------------------------------------------------------
AL32UTF8

SQL> alt^H^H^H^H

出现乱码是sqlplus不使用GNU的readline库造成的.

解决方法:

1.可以在使用删除键的同时,按CTRL

2.在BASH下,$stty erase ^H

或把stty erase ^H加到.bash_profile里

2010年12月20日月曜日

PEAR and PECL

Pear：是PHP的扩展代码包，所有的扩展均以PHP代码的形式出现，功能强大，安装简单，甚至可以改改就用。使用的时候，要在代码中进行Include才能够使用。

Pecl：是PHP的标准扩展，可以补充实际开发中所需的功能，所有的扩展都需要安装，在Windows下面以Dll的形式出现，在linux下面，需要单独进行编译，它的表现形式为根据PHP官方的标准用C语言写成，尽管源码开放但是一般人无法随意更改源码。

最直接的表述：Pear是PHP的上层扩展，Pecl是PHP的底层扩展。

这是一些PHP扩展模块的集合
扩展PHP有两种方法
一种是用纯粹的PHP代码写函数和类，pear就是这样一个项目，主页是pear.php.net
另外一种是用c或者c++编写外部模块加载至php中，pecl就是干这个事的，主页是pecl.php.net

这两种方法其实都是为特定的应用提供现成的函数或者类，本质上来说都是一样的

2010年12月17日金曜日

linux mount windows Mac OS X share folder

mount //192.168.241.2/pointon_php /mnt/php -o username=administrator,password=huigezi2222

Mount Mac OS X

进入"System Preferences" -->"Sharing" --> "File Sharing"，添加想要共享的文件夹，在选择"Options..." 按钮，选择SMB 共享文件。

mount -o username=name,password=pd //9.100.100.21/alfcee /mnt/test

模块查看

apache2ctl -t -D DUMP_MODULES

php -m

1. lsmod 列出已经加载的内核模块

lsmod 是列出目前系统中已加载的模块的名称及大小等；另外我们还可以查看 /proc/modules ，我们一样可以知道系统已经加载的模块。

2.modinfo 查看模块信息

modinfo 可以查看模块的信息，通过查看模块信息来判定这个模块的用途。

3.modprobe 挂载新模块以及新模块相依赖的模块

modprobe 我们常用的功能就是挂载模块，在挂载某个内核模块的同时，这个模块所依赖的模块也被同时挂载；当然modprobe 也有列出内核所有模块，还有移除模块的功能；下在我们举个例子说一说咱们常用的功能和参数；

    modprobe [-v] [-V] [-C config-file] [-n] [-i] [-q] [-o ] [parameters...]
    modprobe -r [-n] [-i] [-v] ...
    modprobe -l -t [ -a ...]

我们可以看到在/etc/modprobe.conf文件中存在的内容形式如下：

alias scsi_hostadapter mptbase
alias scsi_hostadapter1 mptspi

最后一列是模块名字，中间的是模块的别名。那么如果我们知道了一个模块的名字，怎么知道它的别名呢？用下面的命令就可以：

#modprobe -c 
可以查看所有模块的别名

#modprobe -c 模块名 |grep 模块名

modprobe -l 是列出内核中所有的模块，包括已挂载和未挂载的；通过modprobe -l ，我们能查看到我们所需要的模块，然后根据我们的需要来挂载；其实modprobe -l 读取的模块列表就位于 /lib/modules/'uname -r' 目录中；其中uname -r 是内核的版本；

注意：模块名是不能带有后缀的，我们通过modprobe -l 所看到的模块，都是带有.ko 或.o后缀；

4.rmmod 移除已挂载模块

5.depmod 创建模块依赖关系的列表

这个模块管理工具是创建模块依赖关系的列表，有几个参数我们注意一下就行了，目前的的Linux 发行版所用的内核是2.6x版本，是自动解决依赖关系，所以这个命令知道就行了；模块之前也有依赖关系，比如我们想驱动USB 移动硬盘，目前有两种驱动，一种是udev ，在内核中有，但目前不太稳定；另一种办法是用usb-storage驱动，而usb-storage 依赖的模块是scsi 模块，所以我们要用usb-storage 的模块，也得把scsi 编译安装；

再举个例子：sata的硬盘，在Linux中的设备表示的是/dev/sd* ，比如 /dev/sda，/dev/sdb 等... 系统要驱动 sata硬盘，则需要把sata在内核中选中，或编译成模块，或内置于内核之中，在此同时，还需要在内核中选中ide ，scsi 的支持等；

depmod 工具的洋文原意：depmod — program to generate modules.dep and map files.（我译的：为modules.dep 文件或映射文件创建依赖关系）

    [root@localhost beinan]# depmod -a 注：为所有列在/etc/modprobe.conf 或/etc/modules.conf 中的所有模块创建依赖关系，并且写入到modules.dep文件；
    [root@localhost beinan]# depmod -e 注：列出已挂载但不可用的模块；
    [root@localhost beinan]# depmod -n 注：列出所有模块的依赖关系，但仅仅是输出出来（Write the dependency file on stdout only）

注：modules.dep 位于 /lib/modules/内核版本目录

php インストール

wget http://museum.php.net/php5/php-5.1.0.tar.gz

tar zxvf php-5.1.0.tar.gz

cd php-5.1.0

yum install flex

yum install libxml2

yum install libxslt-devel

yum install curl curl-devel

yum install libmcrypt libmcrypt-devel

./configure
--with-apxs2=/usr/sbin/apxs
--with-mysql
--enable-track-vars
--enable-mbstring
--enable-ftp
--with-openssl
--with-ssl
--with-curl
--with-mcrypt

make

make install

make clean

./configure --with-apxs2=/usr/sbin/apxs --with-pgsql=/usr/local/pgsql/bin/pg_config --with-pdo-pgsql=/usr/local/pgsql/bin/pg_config \
--enable-track-vars --enable-mbstring --enable-ftp --with-openssl --with-ssl --with-curl --with-mcrypt

Usage: configure [options] [host]
Options: [defaults in brackets after descriptions]
Configuration:
  --cache-file=FILE cache test results in FILE
  --help print this message
  --no-create do not create output files
  --quiet, --silent do not print `checking...' messages
  --version print the version of autoconf that created configure
Directory and file names:
  --prefix=PREFIX install architecture-independent files in PREFIX
   [/usr/local]
  --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
   [same as prefix]
  --bindir=DIR user executables in DIR [EPREFIX/bin]
  --sbindir=DIR system admin executables in DIR [EPREFIX/sbin]
  --libexecdir=DIR program executables in DIR [EPREFIX/libexec]
  --datadir=DIR read-only architecture-independent data in DIR
   [PREFIX/share]
  --sysconfdir=DIR read-only single-machine data in DIR [PREFIX/etc]
  --sharedstatedir=DIR modifiable architecture-independent data in DIR
   [PREFIX/com]
  --localstatedir=DIR modifiable single-machine data in DIR [PREFIX/var]
  --libdir=DIR object code libraries in DIR [EPREFIX/lib]
  --includedir=DIR C header files in DIR [PREFIX/include]
  --oldincludedir=DIR C header files for non-gcc in DIR [/usr/include]
  --infodir=DIR info documentation in DIR [PREFIX/info]
  --mandir=DIR man documentation in DIR [PREFIX/man]
  --srcdir=DIR find the sources in DIR [configure dir or ..]
  --program-prefix=PREFIX prepend PREFIX to installed program names
  --program-suffix=SUFFIX append SUFFIX to installed program names
  --program-transform-name=PROGRAM
   run sed PROGRAM on installed program names
Host type:
  --build=BUILD configure for building on BUILD [BUILD=HOST]
  --host=HOST configure for HOST [guessed]
  --target=TARGET configure for TARGET [TARGET=HOST]
Features and packages:
  --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
  --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
  --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)
  --x-includes=DIR X include files are in DIR
  --x-libraries=DIR X library files are in DIR
--enable and --with options recognized:
  --with-libdir=NAME Look for libraries in .../NAME rather than .../lib
  --disable-rpath Disable passing additional runtime library
   search paths
  --enable-re2c-cgoto Enable -g flag to re2c to use computed goto gcc extension

SAPI modules:

  --with-aolserver=DIR Specify path to the installed AOLserver
  --with-apxs[=FILE] Build shared Apache 1.x module. FILE is the optional
   pathname to the Apache apxs tool [apxs]
  --with-apache[=DIR] Build Apache 1.x module. DIR is the top-level Apache
   build directory [/usr/local/apache]
  --enable-mod-charset APACHE: Enable transfer tables for mod_charset (Rus Apache)
  --with-apxs2filter[=FILE]
   EXPERIMENTAL: Build shared Apache 2.0 Filter module. FILE is the optional
   pathname to the Apache apxs tool [apxs]
  --with-apxs2[=FILE] Build shared Apache 2.0 Handler module. FILE is the optional
   pathname to the Apache apxs tool [apxs]
  --with-apache-hooks[=FILE]
   EXPERIMENTAL: Build shared Apache 1.x module. FILE is the optional
   pathname to the Apache apxs tool [apxs]
  --with-apache-hooks-static[=DIR]
   EXPERIMENTAL: Build Apache 1.x module. DIR is the top-level Apache
   build directory [/usr/local/apache]
  --enable-mod-charset APACHE (hooks): Enable transfer tables for mod_charset (Rus Apache)
  --with-caudium[=DIR] Build PHP as a Pike module for use with Caudium.
   DIR is the Caudium server dir [/usr/local/caudium/server]
  --disable-cli Disable building CLI version of PHP
   (this forces --without-pear)
  --with-continuity=DIR Build PHP as Continuity Server module.
   DIR is path to the installed Continuity Server root
  --enable-embed[=TYPE] EXPERIMENTAL: Enable building of embedded SAPI library
   TYPE is either 'shared' or 'static'. [TYPE=shared]
  --with-isapi[=DIR] Build PHP as an ISAPI module for use with Zeus
  --with-litespeed Build PHP as litespeed module
  --with-milter[=DIR] Build PHP as Milter application
  --with-nsapi=DIR Build PHP as NSAPI module for Netscape/iPlanet/Sun Webserver
  --with-phttpd=DIR Build PHP as phttpd module
  --with-pi3web[=DIR] Build PHP as Pi3Web module
  --with-roxen=DIR Build PHP as a Pike module. DIR is the base Roxen
   directory, normally /usr/local/roxen/server
  --enable-roxen-zts ROXEN: Build the Roxen module using Zend Thread Safety
  --with-thttpd=SRCDIR Build PHP as thttpd module
  --with-tux=MODULEDIR Build PHP as a TUX module (Linux only)
  --with-webjames=SRCDIR Build PHP as a WebJames module (RISC OS only)
  --disable-cgi Disable building CGI version of PHP

General settings:

  --enable-gcov Enable GCOV code coverage (requires LTP) - FOR DEVELOPERS ONLY!!
  --enable-debug Compile with debugging symbols
  --with-layout=TYPE Set how installed files will be laid out. Type can
   be either PHP or GNU [PHP]
  --with-config-file-path=PATH
   Set the path in which to look for php.ini [PREFIX/lib]
  --with-config-file-scan-dir=PATH
   Set the path where to scan for configuration files
  --enable-safe-mode Enable safe mode by default
  --with-exec-dir[=DIR] Only allow executables in DIR under safe-mode
   [/usr/local/php/bin]
  --enable-sigchild Enable PHP's own SIGCHLD handler
  --enable-magic-quotes Enable magic quotes by default.
  --enable-libgcc Enable explicitly linking against libgcc
  --disable-short-tags Disable the short-form = 0.9.6)
  --with-kerberos[=DIR] OPENSSL: Include Kerberos support
  --with-pcre-regex=DIR Include Perl Compatible Regular Expressions support.
   DIR is the PCRE install prefix [BUNDLED]
  --without-sqlite3[=DIR] Do not include SQLite3 support. DIR is the prefix to
   SQLite3 installation directory.
  --with-zlib[=DIR] Include ZLIB support (requires zlib >= 1.0.9)
  --with-zlib-dir=
   Define the location of zlib install directory
  --enable-bcmath Enable bc style precision math functions
  --with-bz2[=DIR] Include BZip2 support
  --enable-calendar Enable support for calendar conversion
  --disable-ctype Disable ctype functions
  --with-curl[=DIR] Include cURL support
  --with-curlwrappers Use cURL for url streams
  --enable-dba Build DBA with bundled modules. To build shared DBA
   extension use --enable-dba=shared
  --with-qdbm[=DIR] DBA: QDBM support
  --with-gdbm[=DIR] DBA: GDBM support
  --with-ndbm[=DIR] DBA: NDBM support
  --with-db4[=DIR] DBA: Berkeley DB4 support
  --with-db3[=DIR] DBA: Berkeley DB3 support
  --with-db2[=DIR] DBA: Berkeley DB2 support
  --with-db1[=DIR] DBA: Berkeley DB1 support/emulation
  --with-dbm[=DIR] DBA: DBM support
  --without-cdb[=DIR] DBA: CDB support (bundled)
  --disable-inifile DBA: INI support (bundled)
  --disable-flatfile DBA: FlatFile support (bundled)
  --disable-dom Disable DOM support
  --with-libxml-dir[=DIR] DOM: libxml2 install prefix
  --with-enchant[=DIR] Include enchant support.
   GNU Aspell version 1.1.3 or higher required.
  --enable-exif Enable EXIF (metadata from images) support
  --disable-fileinfo Disable fileinfo support
  --disable-filter Disable input filter support
  --with-pcre-dir FILTER: pcre install prefix
  --enable-ftp Enable FTP support
  --with-openssl-dir[=DIR] FTP: openssl install prefix
  --with-gd[=DIR] Include GD support. DIR is the GD library base
   install directory [BUNDLED]
  --with-jpeg-dir[=DIR] GD: Set the path to libjpeg install prefix
  --with-png-dir[=DIR] GD: Set the path to libpng install prefix
  --with-zlib-dir[=DIR] GD: Set the path to libz install prefix
  --with-xpm-dir[=DIR] GD: Set the path to libXpm install prefix
  --with-freetype-dir[=DIR] GD: Set the path to FreeType 2 install prefix
  --with-t1lib[=DIR] GD: Include T1lib support. T1lib version >= 5.0.0 required
  --enable-gd-native-ttf GD: Enable TrueType string function
  --enable-gd-jis-conv GD: Enable JIS-mapped Japanese font support
  --with-gettext[=DIR] Include GNU gettext support
  --with-gmp[=DIR] Include GNU MP support
  --with-mhash[=DIR] Include mhash support
  --disable-hash Disable hash support
  --without-iconv[=DIR] Exclude iconv support
  --with-imap[=DIR] Include IMAP support. DIR is the c-client install prefix
  --with-kerberos[=DIR] IMAP: Include Kerberos support. DIR is the Kerberos install prefix
  --with-imap-ssl[=DIR] IMAP: Include SSL support. DIR is the OpenSSL install prefix
  --with-interbase[=DIR] Include InterBase support. DIR is the InterBase base
   install directory [/usr/interbase]
  --enable-intl Enable internationalization support
  --with-icu-dir=DIR Specify where ICU libraries and headers can be found
  --disable-json Disable JavaScript Object Serialization support
  --with-ldap[=DIR] Include LDAP support
  --with-ldap-sasl[=DIR] LDAP: Include Cyrus SASL support
  --enable-mbstring Enable multibyte string support
  --disable-mbregex MBSTRING: Disable multibyte regex support
  --disable-mbregex-backtrack
   MBSTRING: Disable multibyte regex backtrack check
  --with-libmbfl[=DIR] MBSTRING: Use external libmbfl. DIR is the libmbfl base
   install directory [BUNDLED]
  --with-onig[=DIR] MBSTRING: Use external oniguruma. DIR is the oniguruma install prefix.
   If DIR is not set, the bundled oniguruma will be used
  --with-mcrypt[=DIR] Include mcrypt support
  --with-mssql[=DIR] Include MSSQL-DB support. DIR is the FreeTDS home
   directory [/usr/local/freetds]
  --with-mysql[=DIR] Include MySQL support. DIR is the MySQL base
   directory. If mysqlnd is passed as DIR,
   the MySQL native driver will be used [/usr/local]
  --with-mysql-sock[=DIR] MySQL/MySQLi/PDO_MYSQL: Location of the MySQL unix socket pointer.
   If unspecified, the default locations are searched
  --with-zlib-dir[=DIR] MySQL: Set the path to libz install prefix
  --with-mysqli[=FILE] Include MySQLi support. FILE is the path
   to mysql_config. If mysqlnd is passed as FILE,
   the MySQL native driver will be used [mysql_config]
  --enable-embedded-mysqli MYSQLi: Enable embedded support
   Note: Does not work with MySQL native driver!
  --with-oci8[=DIR] Include Oracle (OCI8) support. DIR defaults to $ORACLE_HOME.
   Use --with-oci8=instantclient,/path/to/instant/client/lib
   to use an Oracle Instant Client installation
  --with-adabas[=DIR] Include Adabas D support [/usr/local]
  --with-sapdb[=DIR] Include SAP DB support [/usr/local]
  --with-solid[=DIR] Include Solid support [/usr/local/solid]
  --with-ibm-db2[=DIR] Include IBM DB2 support [/home/db2inst1/sqllib]
  --with-ODBCRouter[=DIR] Include ODBCRouter.com support [/usr]
  --with-empress[=DIR] Include Empress support [$EMPRESSPATH]
   (Empress Version >= 8.60 required)
  --with-empress-bcs[=DIR]
   Include Empress Local Access support [$EMPRESSPATH]
   (Empress Version >= 8.60 required)
  --with-birdstep[=DIR] Include Birdstep support [/usr/local/birdstep]
  --with-custom-odbc[=DIR]
   Include user defined ODBC support. DIR is ODBC install base
   directory [/usr/local]. Make sure to define CUSTOM_ODBC_LIBS and
   have some odbc.h in your include dirs. f.e. you should define
   following for Sybase SQL Anywhere 5.5.00 on QNX, prior to
   running this configure script:
   CPPFLAGS="-DODBC_QNX -DSQLANY_BUG"
   LDFLAGS=-lunix
   CUSTOM_ODBC_LIBS="-ldblib -lodbc"
  --with-iodbc[=DIR] Include iODBC support [/usr/local]
  --with-esoob[=DIR] Include Easysoft OOB support [/usr/local/easysoft/oob/client]
  --with-unixODBC[=DIR] Include unixODBC support [/usr/local]
  --with-dbmaker[=DIR] Include DBMaker support
  --enable-pcntl Enable pcntl support (CLI/CGI only)
  --disable-pdo Disable PHP Data Objects support
  --with-pdo-dblib[=DIR] PDO: DBLIB-DB support. DIR is the FreeTDS home directory
  --with-pdo-firebird[=DIR] PDO: Firebird support. DIR is the Firebird base
   install directory [/opt/firebird]
  --with-pdo-mysql[=DIR] PDO: MySQL support. DIR is the MySQL base directoy
   If mysqlnd is passed as DIR, the MySQL native
   native driver will be used [/usr/local]
  --with-zlib-dir[=DIR] PDO_MySQL: Set the path to libz install prefix
  --with-pdo-oci[=DIR] PDO: Oracle OCI support. DIR defaults to $ORACLE_HOME.
   Use --with-pdo-oci=instantclient,prefix,version
   for an Oracle Instant Client SDK.
   For Linux with 10.2.0.3 RPMs (for example) use:
   --with-pdo-oci=instantclient,/usr,10.2.0.3
  --with-pdo-odbc=flavour,dir
   PDO: Support for 'flavour' ODBC driver.
   include and lib dirs are looked for under 'dir'.

   'flavour' can be one of: ibm-db2, iODBC, unixODBC, generic
   If ',dir' part is omitted, default for the flavour
   you have selected will used. e.g.:

   --with-pdo-odbc=unixODBC

   will check for unixODBC under /usr/local. You may attempt
   to use an otherwise unsupported driver using the "generic"
   flavour. The syntax for generic ODBC support is:

   --with-pdo-odbc=generic,dir,libname,ldflags,cflags

   When build as shared the extension filename is always pdo_odbc.so
  --with-pdo-pgsql[=DIR] PDO: PostgreSQL support. DIR is the PostgreSQL base
   install directory or the path to pg_config
  --without-pdo-sqlite[=DIR]
   PDO: sqlite 3 support. DIR is the sqlite base
   install directory [BUNDLED]
  --with-pgsql[=DIR] Include PostgreSQL support. DIR is the PostgreSQL
   base install directory or the path to pg_config
  --disable-phar Disable phar support
  --disable-posix Disable POSIX-like functions
  --with-pspell[=DIR] Include PSPELL support.
   GNU Aspell version 0.50.0 or higher required
  --with-libedit[=DIR] Include libedit readline replacement (CLI/CGI only)
  --with-readline[=DIR] Include readline support (CLI/CGI only)
  --with-recode[=DIR] Include recode support
  --disable-session Disable session support
  --with-mm[=DIR] SESSION: Include mm support for session storage
  --enable-shmop Enable shmop support
  --disable-simplexml Disable SimpleXML support
  --with-libxml-dir=DIR SimpleXML: libxml2 install prefix
  --with-snmp[=DIR] Include SNMP support
  --with-openssl-dir[=DIR] SNMP: openssl install prefix
  --enable-ucd-snmp-hack SNMP: Enable UCD SNMP hack
  --enable-soap Enable SOAP support
  --with-libxml-dir=DIR SOAP: libxml2 install prefix
  --enable-sockets Enable sockets support
  --without-sqlite=DIR Do not include sqlite support. DIR is the sqlite base
   install directory [BUNDLED]
  --enable-sqlite-utf8 SQLite: Enable UTF-8 support for SQLite
  --with-sybase-ct[=DIR] Include Sybase-CT support. DIR is the Sybase home
   directory [/home/sybase]
  --enable-sysvmsg Enable sysvmsg support
  --enable-sysvsem Enable System V semaphore support
  --enable-sysvshm Enable the System V shared memory support
  --with-tidy[=DIR] Include TIDY support
  --disable-tokenizer Disable tokenizer support
  --enable-wddx Enable WDDX support
  --with-libxml-dir=DIR WDDX: libxml2 install prefix
  --with-libexpat-dir=DIR WDDX: libexpat dir for XMLRPC-EPI (deprecated)
  --disable-xml Disable XML support
  --with-libxml-dir=DIR XML: libxml2 install prefix
  --with-libexpat-dir=DIR XML: libexpat install prefix (deprecated)
  --disable-xmlreader Disable XMLReader support
  --with-libxml-dir=DIR XMLReader: libxml2 install prefix
  --with-xmlrpc[=DIR] Include XMLRPC-EPI support
  --with-libxml-dir=DIR XMLRPC-EPI: libxml2 install prefix
  --with-libexpat-dir=DIR XMLRPC-EPI: libexpat dir for XMLRPC-EPI (deprecated)
  --with-iconv-dir=DIR XMLRPC-EPI: iconv dir for XMLRPC-EPI
  --disable-xmlwriter Disable XMLWriter support
  --with-libxml-dir=DIR XMLWriter: libxml2 install prefix
  --with-xsl[=DIR] Include XSL support. DIR is the libxslt base
   install directory (libxslt >= 1.1.0 required)
  --enable-zip Include Zip read/write support
  --with-zlib-dir[=DIR] ZIP: Set the path to libz install prefix
  --with-pcre-dir ZIP: pcre install prefix
  --enable-mysqlnd-threading
   EXPERIMENTAL: Enable mysqlnd threaded fetch.
   Note: This forces ZTS on!

PEAR:

  --with-pear=DIR Install PEAR in DIR [PREFIX/lib/php]
  --without-pear Do not install PEAR

Zend:

  --with-zend-vm=TYPE Set virtual machine dispatch method. Type is
   one of CALL, SWITCH or GOTO [TYPE=CALL]
  --enable-maintainer-zts Enable thread safety - for code maintainers only!!
  --disable-inline-optimization
   If building zend_execute.lo fails, try this switch
  --enable-zend-multibyte Compile with zend multibyte support

TSRM:

  --with-tsrm-pth[=pth-config]
   Use GNU Pth
  --with-tsrm-st Use SGI's State Threads
  --with-tsrm-pthreads Use POSIX threads (default)

Libtool:

  --enable-shared[=PKGS] build shared libraries [default=yes]
  --enable-static[=PKGS] build static libraries [default=yes]
  --enable-fast-install[=PKGS] optimize for fast installation [default=yes]
  --with-gnu-ld assume the C compiler uses GNU ld [default=no]
  --disable-libtool-lock avoid locking (might break parallel builds)
  --with-pic try to use only PIC/non-PIC objects [default=use both]
  --with-tags[=TAGS] include additional configurations [automatic]

  --with-gnu-ld assume the C compiler uses GNU ld [default=no]

2010年12月9日木曜日

php 笔记1

面向对象特性

public/private/protected访问修饰符，针对对象中的方法和属性

统一的构造函数名称__construct().

通过__destructor()定义对象的析构方法

接口

instanceof操作符

final方法--不能被子类重载

final标记类 --不能被子类继承

强制复制对象必须用clone关键字

类中的常量可以用类来引用 const AA="AA" --> Class::AA

静态方法不支持$this变量 Class::method();

静态成员通过类自身来访问 self::$instance;

抽象类防止被实例化

抽象方法

对象类型提示函数声明中对参数进行对象类型提示，不正确系统报错

支持连续引用方法返回的对象 $obj->method()->method2();

迭代实现Iterator接口后，可以用foreach()遍历一个类实例

__autoload()方法

其他特性

try/throw/catch 你只能抛出继承Exception的类

foreach 函数支持引用循环参数加上&符号，可以在循环中更改数组的值

给引用参数设置默认值 php4只能给传递值的参数设置默认值，php5可以给传递引用的参数设置默认值

基础

php不支持全局变量，除了一些预定义的变量

间接引用

管理变量

isset() 用来判断某个变量是否已经被声明。返回布尔值
isset(v1,v2,v3…)可以接受多个参数，所有变量都定义的情况下才返回true

unset()取消定义之前的变量，如果没有其他变量引用它的话会释放变量使用的内存空间

empty() 判断变量是否没被声明或者值是false

预定义超全局变量

$_GET[],$_POST[],$_COOKIE[],$_ENV[],$_SERVER[]

基础数据类型

8种数据类型
整型
浮点型数字
字符串
单引号不支持双引号的转义和变量替换定界符以<<<符号开始，紧跟的字符串不能在文本中出现。
定界符转义和变量替换基本和双引号相同，不同的是不需要转义双引号。
访问字符串中的字符 $str{1}
布尔型空字符串("")和0("0")字符串为false
NULL
Resources
数组 php的数组是使用哈希表构建的。 array([key=>] value,[key=>] value,...) 方括号中元素可选
访问数组元素
$arr1[0]
使用foreach遍历数组
常量 define("CONSTANT_NAME",value [,case_sensitivity]) case_sensitivity大小写敏感，默认true

比较运算
1=="1" true
1==1 true
1==="1" false
1===1 true

类型转换
(int),(integer)
(float),(real),(double)
(string)
(bool),(Boolean)
(array)
(object)

代码包含控制结构
include file_name;
require file_name; require会停止代码执行，include只会警告

eval() 把代码当作字符串包含进来再执行

通过值返回数据
通过引用返回数据

传递值的参数
传递引用的参数

默认参数

2010年12月7日火曜日

OpenID OAuth 的区别

先来OpenID的

用户希望访问其在example.com的账户
example.com (在OpenID的黑话里面被称为“Relying Party”) 提示用户输入他/她/它的OpenID
用户给出了他的OpenID，比如说"http://user.myopenid.com"
example.com 跳转到了用户的OpenID提供商“mypopenid.com”
用户在"myopenid.com"(OpenID provider)提示的界面上输入用户名密码登录
“myopenid.com" (OpenID provider) 问用户是否要登录到example.com
用户同意后，"myopenid.com" (OpenID provider) 跳转回example.com
example.com 允许用户访问其帐号

再来OAuth的

用户在使用example.com时希望从mycontacts.com导入他的联系人
example.com (在OAuth的黑话里面叫“Consumer”)把用户送往mycontacts.com (黑话是“Service Provider”)
用户在mycontacts.com 登录(可能也可能不用了他的OpenID)
mycontacts.com问用户是不是希望授权example.com访问他在mycontact.com的联系人
用户确定
mycontacts.com 把用户送回example.com
example.com 从mycontacts.com拿到联系人
example.com 告诉用户导入成功

上面的例子告诉我们，OpenID是用来验证的，就是说俺可以用一个url来唯一表明俺的身份（不用挨个记每个网站的用户密码了）。OAuth是用来授权的（俺可以授权一个网站访问俺在另外一个网站的数据，而俺不用把俺的密码给第一个网站。想想现在开心网让你通过msn联系人导入好有时候干的事儿吧，反正俺不愿意把俺的msn密码给开心网）

2010年12月4日土曜日

linux shell 笔记二

流程控制
if表达式
if...;then
  ...
elif...;then
  ...
else
  ...
fi
大多数情况下，可以使用测试命令来对条件进行测试。比如可以比较字符串、判断文件是否存在及是否可读等等…
通常用" [ ] "来表示条件测试。注意这里的空格很重要。要确保方括号的空格。
[ -f "somefile" ] ：判断是否是一个文件
[ -x "/bin/ls" ] ：判断/bin/ls是否存在并有可执行权限
[ -n "$var" ] ：判断$var变量是否有值
[ "$a" = "$b" ] ：判断$a和$b是否相等
条件判断:expression为字符串操作
-n str 字符串str是否不为空
-z str 字符串str是否为空
str1 =str2 str1是否与str2相同
str1!=str2 str1是否与str2不同
条件判断:expression为整数操作
expr1 -a expr2 如果 expr1 和 expr2 评估为真，则为真
expr1 -o expr2 如果 expr1 或 expr2 评估为真，则为真
条件判断:expression为bool操作
int1 -eq int2 如果int1等于int2,则为真
int1 -ge int2 如果int1大于或等于int2,则为真
int1 -gt int2 如果int1大于int2 ,则为真
int1 -le int2 如果int1小于或等于int2 ,则为真
int1 -lt int2 如果int1小于int2 ,则为真
int1 -ne int2 如果int1不等于int2 ,则为真
条件判断:expression为文件操作
-b 是否块文件 -p 文件是否为一个命名管道
-c 是否字符文件 -r 文件是否可读
-d 是否一个目录 -s 文件的长度是否不为零
-e 文件是否存在 -S 是否为套接字文件
-f 是否普通文件 -x 文件是否可执行，则为真
-g 是否设置了文件的 SGID 位 -u 是否设置了文件的 SUID 位
-G 文件是否存在且归该组所有 -w 文件是否可写，则为真
-k 文件是否设置了的粘贴位 -O 文件是否存在且归该用户所有
-t fd fd 是否是一个与终端相连的打开的文件描述符（fd 默认为 1）

-b file True if file exists and is a block special file.
-c file True if file exists and is a character special file.
-d file True if file exists and is a directory.
-e file True if file exists (regardless of type).
-f file True if file exists and is a regular file.
-g file True if file exists and its set group ID flag is set.
-h file True if file exists and is a symbolic link. This operator is retained for compatibility with previous versions of this program. Do not rely on its existence; use -L instead.
-k file True if file exists and its sticky bit is set.
-p file True if file is a named pipe (FIFO).
-r file True if file exists and is readable.
-s file True if file exists and has a size greater than zero.
-t file_descriptor True if the file whose file descriptor number is file_descriptor is open and is associated with a terminal.
-u file True if file exists and its set user ID flag is set.
-w file True if file exists and is writable. True indicates only that the write flag is on. The file is not writable on a read-only file system even if this test indicates true.
-x file True if file exists and is executable. True indicates only that the execute flag is on. If file is a directory, true indicates that file can be searched.
-L file True if file exists and is a symbolic link.
-O file True if file exists and its owner matches the effective user id of this process.
-G file True if file exists and its group matches the effective group id of this process.
-S file True if file exists and is a socket.

-z string True if the length of string is zero.
-n string True if the length of string is nonzero.

file1 -nt file2 True if file1 exists and is newer than file2.
file1 -ot file2 True if file1 exists and is older than file2.
file1 -ef file2 True if file1 and file2 exist and refer to the same file.

string True if string is not the null string.
s1 = s2 True if the strings s1 and s2 are identical.
s1 != s2 True if the strings s1 and s2 are not identical.
s1 < s2 True if string s1 comes before s2 based on the ASCII value of their characters.
s1 > s2 True if string s1 comes after s2 based on the ASCII value of their characters.

n1 -eq n2 True if the integers n1 and n2 are algebraically equal.
n1 -ne n2 True if the integers n1 and n2 are not algebraically equal.
n1 -gt n2 True if the integer n1 is algebraically greater than the integer n2.
n1 -ge n2 True if the integer n1 is algebraically greater than or equal to the integer n2.
n1 -lt n2 True if the integer n1 is algebraically less than the integer n2.
n1 -le n2 True if the integer n1 is algebraically less than or equal to the integer n2.

! expression True if expression is false.

expression1 -a expression2 True if both expression1 and expression2 are true.

expression1 -o expression2 True if either expression1 or expression2 are true.

(expression) True if expression is true.

linux shell 笔记一

1 开头
#!/bin/sh

符号#!用来告诉系统它后面的参数是用来执行该文件的程序。在这个例子中我们使用/bin/sh来执行程序。

当编辑好脚本时，如果要执行该脚本，还必须使其可执行。
要使脚本可执行：
编译 chmod +x filename 这样才能用./filename 来运行

2 变量
#对变量赋值：

a="hello world"

2.1 环境变量
由export关键字处理过的变量叫做环境变量。

2.3 系统变量
$1,$2
$*
1> 正常输出
2> 错误输出
& 后台执行
/dev/null

2.4 常用系统变量
$n $1 表示第一个参数，$2 表示第二个参数 ...
$# 命令行参数的个数
$0 当前程序的名称
$? 前一个命令或函数的返回码
$* 以"参数1 参数2 ... " 形式保存所有参数
$@ 以"参数1" "参数2" ... 形式保存所有参数
$$ 本程序的(进程ID号)PID
$! 上一个命令的PID

3 Unix 命令

虽然在shell脚本中可以使用任意的unix命令，但是还是由一些相对更常用的命令。这些命令通常是用来进行文件和文字操作的。

cut -b colnum file: 指定欲显示的文件内容范围，并将它们输出到标准输出设备。比如：输出每行第5个到第9个字符cut -b5-9 file.txt

file somefile: 得到文件类型

read var: 提示用户输入，并将输入赋值给变量

sort file.txt: 对file.txt文件中的行进行排序

uniq: 删除文本文件中出现的行列比如：
sort file.txt | uniq

expr: 进行数学运算Example:
add 2 and 3expr 2 "+" 3

find: 搜索文件比如：根据文件名搜索
find . -name filename -print

tee: 将数据输出到标准输出设备(屏幕) 和文件比如：
somecommand | tee outfile

basename file: 返回不包含路径的文件名比如：
basename /bin/tux将返回 tux

dirname file: 返回文件所在路径比如：
dirname /bin/tux将返回 /bin

head file: 打印文本文件开头几行

tail file : 打印文本文件末尾几行

sed: Sed是一个基本的查找替换程序。可以从标准输入（比如命令管道）读入文本，并将结果输出到标准输出（屏幕）。该命令采用正则表达式（见参考）进行搜索。

awk: awk 用来从文本文件中提取字段。缺省地，字段分割符是空格，可以使用-F指定其他分割符。
cat file.txt | awk -F, '{print $1 "," $3 }'
这里我们使用，作为字段分割符，同时打印第一个和第三个字段。

4 管道
管道 (|) 将一个命令的输出作为另外一个命令的输入。

grep "hello" file.txt | wc -l 在file.txt中搜索包含有”hello”的行并计算其行数。

5 重定向
将命令的结果输出到文件，而不是标准输出（屏幕）。

> 写入文件并覆盖旧文件

>> 加到文件的尾部，保留旧文件内容。

6 反短斜线
用来查找过去24小时（-mtime –2则表示过去48小时）内修改过的文件。如果想将所有查找到的文件打一个包，则可以使用以下脚本：
tar -zcvf lastmod.tar.gz `find . -mtime -1 -type f -print`

2010年12月2日木曜日

find -mtime +1 find -mtime -1

所有文件都有3个时间信息,保存在文件系统中

atime是文件最后一此读的时间
mtime是文件最后一次写的时间
ctime是i-node信息最后一次写的时间.

[root@netsky test]# date
Thu Feb 12 23:26:41 CST 2009
[root@netsky test]# ll
total 0
-rw-r--r-- 1 root root 0 Feb 10 10:00 1
-rw-r--r-- 1 root root 0 Feb 10 10:00 2
-rw-r--r-- 1 root root 0 Feb 11 10:00 3
-rw-r--r-- 1 root root 0 Feb 11 10:00 4
-rw-r--r-- 1 root root 0 Feb 12 23:21 5
-rw-r--r-- 1 root root 0 Feb 12 23:21 6
-rw-r--r-- 1 root root 0 Feb 13 2009 7
-rw-r--r-- 1 root root 0 Feb 13 2009 8
[root@netsky test]# find . -mtime +1
./2
./1
[root@netsky test]# find . -mtime 1
./3
./4
[root@netsky test]# find . -mtime -1
.
./5
./7
./8
./6
[/code]

[root@netsky test]# find . -mtime +0
./2
./1
./3
./4
[root@netsky test]# find . -mtime -0
./7
./8
[root@netsky test]# find . -mtime 0
.
./5
./6

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