yum search ofrece el listado de resultados de los paquetes producto de la búsqueda por coincidencia de cadena de caracteres en la descripción, resumen y nombre del paquete rpm. Veamos su uso con un ejemplo:
$ yum search imap
==================== Nombre/Resumen que coinciden con: imap ====================
asterisk-voicemail-imap.x86_64 : Store voicemail on an IMAP server
cyrus-imapd.x86_64 : A high-performance mail server with IMAP, POP3, NNTP and
: SIEVE support
cyrus-imapd-devel.i686 : Cyrus IMAP server development files
cyrus-imapd-devel.x86_64 : Cyrus IMAP server development files
cyrus-imapd-utils.x86_64 : Cyrus IMAP server administration utilities
imap-upload.noarch : A tool for uploading a local mbox file to IMAP4 server
imapfilter.x86_64 : A flexible client side mail filtering utility for IMAP
: servers
imapsync.noarch : Tool to migrate email between IMAP servers
offlineimap.noarch : Powerful IMAP/Maildir synchronization and reader support
perl-Mail-IMAPClient.noarch : An IMAP Client API
perl-Net-IMAP-Simple.noarch : Simple IMAP account handling
perl-Net-IMAP-Simple-SSL.noarch : Simple IMAP account handling with SSL
php-imap.x86_64 : A module for PHP applications that use IMAP
up-imapproxy.x86_64 : University of Pittsburgh IMAP Proxy
uw-imap.x86_64 : UW Server daemons for IMAP and POP network mail protocols
uw-imap-devel.i686 : Development tools for programs which will use the UW IMAP
: library
uw-imap-devel.x86_64 : Development tools for programs which will use the UW IMAP
: library
uw-imap-static.x86_64 : UW IMAP static library
uw-imap-utils.x86_64 : UW IMAP Utilities to make managing your email simpler
dovecot.i686 : Secure imap and pop3 server
dovecot.x86_64 : Secure imap and pop3 server
getmail.noarch : POP3, IMAP4 and SDPS mail retriever with Maildir delivery
imp.noarch : The Internet Messaging Program: webmail access to IMAP/POP3
: accounts
isync.x86_64 : Tool to synchronize IMAP4 and Maildir mailboxes
python-twisted-mail.x86_64 : SMTP, IMAP and POP protocol implementation together
: with clients and servers
roundcubemail.noarch : Round Cube Webmail is a browser-based multilingual IMAP
: client
zarafa-gateway.x86_64 : POP3/IMAP Gateway for the Zarafa Collaboration Platform
Nombre y resumen que coinciden con y sólo , use "buscar todo" para todo.