这篇文章介绍的内容涉及了pecl、pear、peardev命令。因为这三个命令的man手册是相同的，所以将他们放在了同一篇文章中进行介绍。
pecl，主机命令工具，用于下载和开发PECL扩展。
pear，用于安装PEAR扩展。
peardev，是pear命令的包装，移除了正常配置的内存限制。
这篇文章介绍的PEAR的版本为version1.10.1
命令行语法格式
pear [ options ] command [command-options] <parameters>
pecl [ options ] command [command-options] <parameters>
peardev [ options ] command [command-options] <parameters>
相关的配置文件
/etc/pear.conf
系统级别的全局配置文件。
$HOME/.pearrc
用户个人的配置文件。
命令支持的选项及含义（命令中的options的取值）
-v increase verbosity level (default 1)
-q be quiet, decrease verbosity level
-c file find user configuration in file
-C file find system configuration in file
-d foo=bar set user config variable foo to bar
-D foo=bar set system config variable foo to bar
-G start in graphical (Gtk) mode
-S store system configuration
-s store user configuration
-y foo unset foo in the user configuration
-V / -h, -?
显示版本和帮助信息。
帮助命令
pear help options
查看所有的选项
pear help shortcuts
查看所有command的简写。
pear help command
用于查看某个command的帮助信息。
支持的command列表（命令中的command部分及每个command支持的command-options）
build
Build an Extension From C Source
bundle
Unpacks a Pecl Package
channel-add
Add a Channel
channel-alias
Specify an alias to a channel name
channel-delete
Remove a Channel From the List
channel-discover
Initialize a Channel from its server
channel-info
Retrieve Information on a Channel
channel-login
Connects and authenticates to remote channel server
channel-logout
Logs out from the remote channel server
channel-update
Update an Existing Channel
clear-cache
Clear Web Services Cache
config-create
Create a Default configuration file
config-get
Show One Setting
config-help
Show Information About Setting
config-set
Change Setting
config-show
Show All Settings
convert
Convert a package.xml 1.0 to package.xml 2.0 format
cvsdiff
Run a “cvs diff” for all files in a package
cvstag
Set CVS Release Tag
「download」: pecl download [options] <package>…
下载指定的package。下载文件以Server建议的格式命名，比如：下载DB包的最后一个稳定版本1.6.5，那下载后包名为DB-1.6.5.tgz。
支持的选项：
-Z, –nocompress
下载一个未压缩的包，.tar文件。
示例：
#!/bin/bash # 下载pdo_sqlsrv pecl download pdo_sqlsrv
download-all
Downloads each available package from the default channel
info
Display information about a package
「install」: pecl install [options] [channel/]<package> …
安装一个或者多个扩展包。可以使用以下四种方式来指定一个包：
- “Package-1.0.tgz” : 安装本地的包。
- “http://example.com/Package-1.0.tgz” : 安装网络中个一个包。
- “package.xml” : 安装package.xml中描述的包。在测试中非常有用，或者将PEAR包包装在其他的如RPM之类的包管理器中。
- “Package[-version/state][.tar]” : 查询默认的channel服务器(pear.php.net) ，下载质量/状态(stable)最好的最新包。
如果要下载1.1版本的Package，使用”Package-1.1“；如果要下载beta版本的包，使用”Package-beta“。如果要下载未压缩的文件，在结尾追加 .tar (先确保目录中没有同名文件)
如果要从其他的channel下载Package，给Package加上channel前缀，如：”channel/Package”
如果一次要安装多个包，四种方式可以混合使用。
Options可以是以下选项：
-f, –force
will overwrite newer installed packages
-l, –loose
do not check for recommended dependency version
-n, –nodeps
ignore dependencies, install anyway
-r, –register-only
do not install files, only register the package as installed
-s, –soft
soft install, fail silently, or upgrade if already installed
-B, –nobuild
don’t build C extensions
-Z, –nocompress
request uncompressed files when downloading
-R DIR, –installroot=DIR
root directory used when installing files (ala PHP’s INSTALL_ROOT), use packagingroot for RPM
-P DIR, –packagingroot=DIR
root directory used when packaging files, like RPM packaging
–ignore-errors
force install even if there were errors
-a, –alldeps
install all required and optional dependencies
-o, –onlyreqdeps
install all required dependencies
-O, –offline
do not attempt to download any urls or contact channels
-p, –pretend
Only list the packages that would be downloaded
「list」：pecl list [options] <package>
List Installed Packages In The Default Channel
If invoked without parameters, this command lists the PEAR packages
installed in your php_dir (/usr/local/php-5.6.31/lib/php). With a parameter, it
lists the files in a package.
Options:
-c CHAN, –channel=CHAN
-a, –allchannels
-i, –channelinfo
list-all
List All Packages
list-channels
List Available Channels
list-files
List Files In Installed Package
list-upgrades
List Available Upgrades
login
Connects and authenticates to remote server [Deprecated in favor of channel-login]
logout
Logs out from the remote server [Deprecated in favor of channel-logout]
make-rpm-spec
Builds an RPM spec file from a PEAR package
makerpm
Builds an RPM spec file from a PEAR package
package
Build Package
package-dependencies
Show package dependencies
package-validate
Validate Package Consistency
pickle
Build PECL Package
remote-info
Information About Remote Packages
remote-list
List Remote Packages
run-scripts
Run Post-Install Scripts bundled with a package
run-tests
Run Regression Tests
search
在远程的数据库中搜索某个包。
shell-test
Shell Script Test
sign
Sign a package distribution file
svntag
Set SVN Release Tag
uninstall
Un-install Package
update-channels
Update the Channel List
upgrade
Upgrade Package
upgrade-all
Upgrade All Packages [Deprecated in favor of calling upgrade with no parameters]
参考文献