现在才刚知道在RedHat Linux下修改MANPATH不是用的$MANPATH而是修改/etc/man.config，，比较惭愧
root@nbu-server etc]# vi /etc/man.config
## Generated automatically from man.conf.in by the# configure script.## man.conf from man-1.5o1## For more information about this file, see the man pages man(1)# and man.conf(5).## This file is read by man to configure the default manpath (also used# when MANPATH contains an empty substring), to find out where the cat# pages corresponding to given man pages should be stored,# and to map each PATH element to a manpath element.# It may also record the pathname of the man binary. [This is unused.]# The format is:## MANBIN pathname# MANPATH manpath_element [corresponding_catdir]# MANPATH_MAP path_element manpath_element## If no catdir is given, it is assumed to be equal to the mandir# (so that this dir has both man1 etc. and cat1 etc. subdirs).# This is the traditional Unix setup.# Certain versions of the FSSTND recommend putting formatted versions# of /usr/…/man/manx/page.x into /var/catman/…/catx/page.x.# The keyword FSSTND will cause this behaviour.# Certain versions of the FHS recommend putting formatted versions of# /usr/…/share/man/[locale/]manx/page.x into# /var/cache/man/…/[locale/]catx/page.x.# The keyword FHS will cause this behaviour (and overrides FSSTND).# Explicitly given catdirs override.## FSSTNDFHS## This file is also read by man in order to find how to call nroff, less, etc.,# and to determine the correspondence between extensions and decompressors.## MANBIN /usr/local/bin/man## Every automatically generated MANPATH includes these fields#MANPATH /usr/share/manMANPATH /usr/manMANPATH /usr/local/share/manMANPATH /usr/local/manMANPATH /usr/X11R6/manMANPATH /usr/openv/man
。。。
孜孜不倦的追求奋斗，加油。
