Here's a list of commands available to the pear command line tool. Many of these commands may require root access to the server.

Command	Description
build	Build the extension from source
bundle	Download and unpack a PECL extension
channel-add	Add a Channel (PEAR 1.4+)
channel-alias	Specify an alias to a channel name (PEAR 1.4+)
channel-delete	Remove a channel from the list (PEAR 1.4+)
channel-discover	Initialize a channel from its server name (PEAR 1.4+)
channel-info	Retrieve information on a channel (PEAR 1.4+)
channel-login	Connects and authenticates to remote channel server ( PEAR 1.8+)
channel-logout	Logs out from the remote channel server ( PEAR 1.8+)
channel-update	Update an existing channel (PEAR 1.4+)
clear-cache	Clear the REST/XML-RPC cache
config-create	Create a default configuration file (PEAR 1.4+)
config-get	Echo a specific configuration setting
config-help	Show information about a setting
config-set	Set a specific configuration setting value
config-show	Show all configuration setting values
convert	Convert a package.xml 1.0 format to package.xml 2.0 format (PEAR 1.4+)
cvsdiff	Execute and display a "cvs diff -u" on all files within the package
cvstag	Set CVS Release Tag
download	Download a package but not install it
download-all	Downloads every available package
info	Display information about a package
install	Install a package, will report with success or failure
list	List installed packages
list-all	List all packages, packaged and/or available
list-channels	List available channels (PEAR 1.4+)
list-files	List files in an installed package (PEAR 1.4+)
list-upgrades	List available upgrades for the installed packages
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]
makerpm	Builds a RPM spec file from a PEAR package
package	Build a 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 (PEAR 1.4+)
run-tests	Run regression tests
search	Search the remote package database
shell-test	Do a shell script test
sign	Sign a package distribution file
svntag	Set a SVN release tag
uninstall	Uninstall and remove a package
update-channels	Update the channel list (PEAR 1.4+)
upgrade	Upgrade a package to the current version (see also: preferred_state)
upgrade-all	Upgrade all packages (see also: list-upgrades)