The pkginfo command lists information about one or more packages installed on a Solaris system. It has a verbose setting to display detailed information about a package which includes the software version number, the number of files and space occupied on disk, and the date of install.
To show detailed information about a patch, invoke pkginfo with the -l (lower case L) switch:
pkginfo -l SUNWapchr
PKGINST: SUNWapchr
NAME: Apache Web Server (root)
CATEGORY: system
ARCH: sparc
VERSION: 11.8.0,REV=2000.01.08.18.12
BASEDIR: /
VENDOR: Sun Microsystems, Inc.
DESC: The Apache HTTP server program (root components)
PSTAMP: on28-patch20010802135728
INSTDATE: Oct 26 2001 18:17
HOTLINE: Please contact your local service provider
STATUS: completely installed
FILES: 166 installed pathnames
8 shared pathnames
5 linked files
17 directories
3 executables
407 blocks used (approx)