Linux 命令一句话

    使用mysqladmin实用程序修改密码的命令行是：

　　shell>mysqladmin -u user -p password "newpassword"

　　运行这个命令，在提示输入密码时，数据就密码，则用户user的密码就被改为newpassword

　　。如果，原来的用户没有密码，则不比指定-p选项。例如，初始化授权表之后，root用户的密码就是空的，你可以这样为root用户设立密码：

　　shell>mysqladmin -u root password "newpassword"

===========================================================================

An easy task, using yum. First step, see if it’s already installed.

[root@srv]# rpm -qa | grep php
php-common-5.1.6-15.el5
php-cli-5.1.6-15.el5
php-5.1.6-15.el5
php-pdo-5.1.6-15.el5
php-mysql-5.1.6-15.el5

If the GD Library isn’t present in that list, it wasn’t installed on the server yet. Install it using yum.

[root@srv]# yum install php-gd
Loading “installonlyn” plugin
Setting up Install Process
Setting up repositories
extras                    100% |====================| 1.1 kB    00:00
updates                 100% |====================|  951 B    00:00
base                      100% |====================| 1.1 kB    00:00
addons                  100% |====================|  951 B    00:00
Reading repository metadata in from local files
primary.xml.gz            100% |====================|  81 kB    00:00
########################################## 282/282
primary.xml.gz            100% |====================| 164 kB    00:00
########################################## 374/374
primary.xml.gz            100% |====================| 853 kB    00:00
########################################## 2458/2458
Parsing package install arguments
Resolving Dependencies
–> Populating transaction set with selected packages. Please wait.
—> Downloading header for php-gd to pack into transaction set.
php-gd-5.1.6-20.el5_2.1.i 100% |====================|  17 kB    00:00
—> Package php-gd.i386 0:5.1.6-20.el5_2.1 set to be updated
–> Running transaction check
–> Processing Dependency: php-common = 5.1.6-20.el5_2.1 for package: php-gd
–> Restarting Dependency Resolution with new changes.
–> Populating transaction set with selected packages. Please wait.
—> Downloading header for php-common to pack into transaction set.
php-common-5.1.6-20.el5_2 100% |====================|  21 kB    00:00
—> Package php-common.i386 0:5.1.6-20.el5_2.1 set to be updated
–> Running transaction check
–> Processing Dependency: php-common = 5.1.6-15.el5 for package: php
–> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-pdo
–> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-mysql
–> Processing Dependency: php-common = 5.1.6-15.el5 for package: php-cli
–> Restarting Dependency Resolution with new changes.
–> Populating transaction set with selected packages. Please wait.
—> Downloading header for php-pdo to pack into transaction set.
php-pdo-5.1.6-20.el5_2.1. 100% |====================|  18 kB    00:00
—> Package php-pdo.i386 0:5.1.6-20.el5_2.1 set to be updated
—> Downloading header for php-mysql to pack into transaction set.
php-mysql-5.1.6-20.el5_2. 100% |====================|  18 kB    00:00
—> Package php-mysql.i386 0:5.1.6-20.el5_2.1 set to be updated
—> Downloading header for php-cli to pack into transaction set.
php-cli-5.1.6-20.el5_2.1. 100% |====================|  18 kB    00:00
—> Package php-cli.i386 0:5.1.6-20.el5_2.1 set to be updated
—> Downloading header for php to pack into transaction set.
php-5.1.6-20.el5_2.1.i386 100% |====================|  19 kB    00:00
—> Package php.i386 0:5.1.6-20.el5_2.1 set to be updated
–> Running transaction check

Dependencies Resolved

=================================
Package                 Arch       Version          Repository        Size
=================================
Installing:
php-gd                  i386       5.1.6-20.el5_2.1  updates           113 k
Updating for dependencies:
php                     i386       5.1.6-20.el5_2.1  updates           1.1 M
php-cli                 i386       5.1.6-20.el5_2.1  updates           2.1 M
php-common              i386       5.1.6-20.el5_2.1  updates           154 k
php-mysql               i386       5.1.6-20.el5_2.1  updates            84 k
php-pdo                 i386       5.1.6-20.el5_2.1  updates            62 k

Transaction Summary
=================================
Install      1 Package(s)
Update       5 Package(s)
Remove       0 Package(s)

Total download size: 3.7 M
Is this ok [y/N]: y
Downloading Packages:
(1/6): php-pdo-5.1.6-20.e 100% |=========================|  62 kB    00:00
(2/6): php-common-5.1.6-2 100% |=========================| 154 kB    00:00
(3/6): php-gd-5.1.6-20.el 100% |=========================| 113 kB    00:00
(4/6): php-mysql-5.1.6-20 100% |=========================|  84 kB    00:00
(5/6): php-cli-5.1.6-20.e 100% |=========================| 2.1 MB    00:01
(6/6): php-5.1.6-20.el5_2 100% |=========================| 1.1 MB    00:00
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Updating  : php-common                   ####################### [ 1/11]
Updating  : php-pdo                      ####################### [ 2/11]
Updating  : php-cli                      ####################### [ 3/11]
Installing: php-gd                       ####################### [ 4/11]
Updating  : php-mysql                    ####################### [ 5/11]
Updating  : php                          ####################### [ 6/11]
Cleanup   : php-pdo                      ####################### [ 7/11]
Cleanup   : php-common                   ####################### [ 8/11]
Cleanup   : php-mysql                    ####################### [ 9/11]
Cleanup   : php-cli                      ####################### [10/11]
Cleanup   : php                          ####################### [11/11]

Installed: php-gd.i386 0:5.1.6-20.el5_2.1
Dependency Updated: php.i386 0:5.1.6-20.el5_2.1 php-cli.i386 0:5.1.6-20.el5_2.1 php-common.i386 0:5.1.6-20.el5_2.1 php-mysql.i386 0:5.1.6-20.el5_2.1 php-pdo.i386 0:5.1.6-20.el5_2.1
Complete!

Easy going, isn’t it?

Restart your apache, and you’re ready to rock.

[root@srv]# service httpd restart
Stopping httpd:                                            [  OK ]
Starting httpd:                                            [  OK ]