Der Befehl ubuntu man zeigt leere Seiten an


7

Linux 3.8.0-31-generic # 46-Ubuntu SMP Di Sep 10 20:03:44 UTC 2013 x86_64 x86_64 x86_64 GNU / Linux

Hallo, meine Manpages sind leer; Wenn ich in meinem Terminal so etwas wie man ls eingebe, wird eine leere Seite mit nur den folgenden Angaben angezeigt:

Manual page man(1) line ?/? (END) (press h for help or q to quit)

Ich versuche bereits, die man-Pakete mit dem Befehl dpkg und apt-get zu deinstallieren, überprüfe meinen Pfad und die man-Konfigurationsdatei ... aber mir fehlt offensichtlich etwas; Kann mir jemand helfen, das zu lösen? Vielen Dank.

sudo apt-get --purge remove manpages manpages-dev freebsd-manpages funny-manpages gmt-manpages man2html manpages-posix manpages-posix-dev asr-manpages

sudo apt-get install manpages manpages-dev freebsd-manpages funny-manpages gmt-manpages man2html manpages-posix manpages-posix-dev asr-manpages

welcher Mann

/usr/bin/man

echo $ PATH

/home/franchin/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/> usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/bin/man

sudo mandb -c

...
Processing manual pages under /usr/local/share/man...
131 man subdirectories contained newer manual pages.
5731 manual pages were added.
0 stray cats were added.

cat /etc/manpath.config

magic           magic.mime      mailcap         mailcap.order   manpath.config  
franchin@N53Jq:~$ cat /etc/manpath.config 
# manpath.config
#
# This file is used by the man-db package to configure the man and cat paths.
# It is also used to provide a manpath for those without one by examining
# their PATH environment variable. For details see the manpath(5) man page.
#
# Lines beginning with `#' are comments and are ignored. Any combination of
# tabs or spaces may be used as `whitespace' separators.
#
# There are three mappings allowed in this file:
# --------------------------------------------------------
# MANDATORY_MANPATH         manpath_element
# MANPATH_MAP       path_element    manpath_element
# MANDB_MAP     global_manpath  [relative_catpath]
#---------------------------------------------------------
# every automatically generated MANPATH includes these fields
#
#MANDATORY_MANPATH          /usr/src/pvm3/man
#
MANDATORY_MANPATH           /usr/man
MANDATORY_MANPATH           /usr/share/man
MANDATORY_MANPATH           /usr/local/share/man
#---------------------------------------------------------
# set up PATH to MANPATH mapping
# ie. what man tree holds man pages for what binary directory.
#
#       *PATH*        ->    *MANPATH*
#
MANPATH_MAP /bin            /usr/share/man
MANPATH_MAP /usr/bin        /usr/share/man
MANPATH_MAP /sbin           /usr/share/man
MANPATH_MAP /usr/sbin       /usr/share/man
MANPATH_MAP /usr/local/bin      /usr/local/man
MANPATH_MAP /usr/local/bin      /usr/local/share/man
MANPATH_MAP /usr/local/sbin     /usr/local/man
MANPATH_MAP /usr/local/sbin     /usr/local/share/man
MANPATH_MAP /usr/X11R6/bin      /usr/X11R6/man
MANPATH_MAP /usr/bin/X11        /usr/X11R6/man
MANPATH_MAP /usr/games      /usr/share/man
MANPATH_MAP /opt/bin        /opt/man
MANPATH_MAP /opt/sbin       /opt/man
#---------------------------------------------------------
# For a manpath element to be treated as a system manpath (as most of those
# above should normally be), it must be mentioned below. Each line may have
# an optional extra string indicating the catpath associated with the
# manpath. If no catpath string is used, the catpath will default to the
# given manpath.
#
# You *must* provide all system manpaths, including manpaths for alternate
# operating systems, locale specific manpaths, and combinations of both, if
# they exist, otherwise the permissions of the user running man/mandb will
# be used to manipulate the manual pages. Also, mandb will not initialise
# the database cache for any manpaths not mentioned below unless explicitly
# requested to do so.
#
# In a per-user configuration file, this directive only controls the
# location of catpaths and the creation of database caches; it has no effect
# on privileges.
#
# Any manpaths that are subdirectories of other manpaths must be mentioned
# *before* the containing manpath. E.g. /usr/man/preformat must be listed
# before /usr/man.
#
#       *MANPATH*     ->    *CATPATH*
#
MANDB_MAP   /usr/man        /var/cache/man/fsstnd
MANDB_MAP   /usr/share/man      /var/cache/man
MANDB_MAP   /usr/local/man      /var/cache/man/oldlocal
MANDB_MAP   /usr/local/share/man    /var/cache/man/local
MANDB_MAP   /usr/X11R6/man      /var/cache/man/X11R6
MANDB_MAP   /opt/man        /var/cache/man/opt
#
#---------------------------------------------------------
# Program definitions.  These are commented out by default as the value
# of the definition is already the default.  To change: uncomment a
# definition and modify it.
#
#DEFINE     pager   pager -s
#DEFINE     cat cat
#DEFINE     tr  tr '\255\267\264\327' '\055\157\047\170'
#DEFINE     grep    grep
#DEFINE     troff   groff -mandoc
#DEFINE     nroff   nroff -mandoc
#DEFINE     eqn     eqn
#DEFINE     neqn    neqn
#DEFINE     tbl     tbl
#DEFINE     col     col
#DEFINE     vgrind  vgrind
#DEFINE     refer   refer
#DEFINE     grap    grap
#DEFINE     pic     pic -S
#
#DEFINE     compressor  gzip -c7
#---------------------------------------------------------
# Misc definitions: same as program definitions above.
#
#DEFINE     whatis_grep_flags       -i
#DEFINE     apropos_grep_flags      -iEw
#DEFINE     apropos_regex_grep_flags    -iE
#---------------------------------------------------------
# Section names. Manual sections will be searched in the order listed here;
# the default is 1, n, l, 8, 3, 0, 2, 5, 4, 9, 6, 7. Multiple SECTION
# directives may be given for clarity, and will be concatenated together in
# the expected way.
# If a particular extension is not in this list (say, 1mh), it will be
# displayed with the rest of the section it belongs to. The effect of this
# is that you only need to explicitly list extensions if you want to force a
# particular order. Sections with extensions should usually be adjacent to
# their main section (e.g. "1 1mh 8 ...").
#
SECTION     1 n l 8 3 2 3posix 3pm 3perl 5 4 9 6 7
#
#---------------------------------------------------------
# Range of terminal widths permitted when displaying cat pages. If the
# terminal falls outside this range, cat pages will not be created (if
# missing) or displayed.
#
#MINCATWIDTH    80
#MAXCATWIDTH    80
#
# If CATWIDTH is set to a non-zero number, cat pages will always be
# formatted for a terminal of the given width, regardless of the width of
# the terminal actually being used. This should generally be within the
# range set by MINCATWIDTH and MAXCATWIDTH.
#
#CATWIDTH   0
#
#---------------------------------------------------------
# Flags.
# NOCACHE keeps man from creating cat pages.
#NOCACHE

Was ist die Ausgabe des whereis lsBefehls?
Radu Rădeanu

Antworten:


4

Ich fand nützliche Informationen hier: https://bugzilla.redhat.com/show_bug.cgi?id=127492

In diesem Beitrag geht es um ein nroff-Problem ... Auf meiner Ubuntu-Version denke ich, dass es groff ist, nicht nroff, habe ich Recht?

Ich weiß, dass ich mit dem Info-Befehl und der --help umgehen kann ... aber es wäre schön, wenn ich den Mann wiederfinden könnte: /

mit dem folgenden cmd löse ich mein problem:

apt-get --reinstall install groff groff-base

Das Problem hing gut mit dem Aufruf von groff zusammen, die Manpages anzuzeigen.

groff pkg nfo


Dies hat nicht geholfen, aber die Antwort von Antonio hat das Problem für mich gelöst.
Jakuje

2

Die Lösung wurde im Canonical Launchpad veröffentlicht :

Seems that problem in apparmor profile loading on older kernels. I
have the same issue on custom kernel 4.4, but with ubuntu kernel 4.15
everything ok.

Workaround for older kernels: 
apt install apparmor-utils 
aa-disable /usr/bin/man

Upstream Bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=889617

Es funktioniert auch auf Kernel 4.12!

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