Provided by: man-db_2.13.1-1_amd64 bug

NAVN

       man - an interface to the system reference manuals

SYNOPSIS

       man [man options] [[section] page ...] ...
       man -k [apropos options] regexp ...
       man -K [man options] [section] term ...
       man -k [apropos tilvalg] regexp ...
       man -l [man options] file ...
       man -w|-W [man options] page ...

BESKRIVELSE

       man  is  the  system's  manual pager.  Each page argument given to man is normally the name of a program,
       utility or function.  The manual page  associated  with  each  of  these  arguments  is  then  found  and
       displayed.   A  section,  if  provided,  will direct man to look only in that section of the manual.  The
       default action is to search in  all  of  the  available  sections  following  a  pre-defined  order  (see
       DEFAULTS), and to show only the first page found, even if page exists in several sections.

       Tabellen nedenfor viser section-antallet af manualen efterfulgt af typen af sider de indeholder.

       1   Kørbare programmer eller skalkommandoer
       2   Systemkald (funktioner stillet til rådighed af kernen)
       3   Bibliotekskald (funktioner i programbiblioteker)
       4   Specielle filer (normalt fundet i /dev)
       5   File formats and conventions, e.g. /etc/passwd
       6   Spil
       7   Miscellaneous (including macro packages and conventions), e.g. man(7), groff(7), man-pages(7)
       8   Kommandoer til systemadministration (normalt kun for root)
       9   Kernerutiner [Ikkestandard]

       En manualside består af flere afsnit.

       Conventional  section  names  include  NAME,  SYNOPSIS, CONFIGURATION, DESCRIPTION, OPTIONS, EXIT STATUS,
       RETURN VALUE, ERRORS, ENVIRONMENT,  FILES,  VERSIONS,  STANDARDS,  NOTES,  BUGS,  EXAMPLE,  AUTHORS,  and
       SEE ALSO.

       De følgende konventioner gælder for afsnittet SYNOPSIS og kan bruges som en vejledning i andre afsnit.

       fed tekst      skriv præcis som vist.
       kursiv         erstat med passende argument.
       [-abc]         et eller alle argumenter inden i [ ] er valgfrie.
       -a|-b          tilvalg afgrænset af | kan ikke bruges sammen.
       argument ...   argument kan gentages.
       [udtryk] ...   hele udtrykket indenfor [ ] kan gentages.

       Præcis optegning kan afhænge af uddataenheden. For eksempel vil man normalt ikke kunne optegne kursiv når
       man befinder sig i en manual, og man vil normalt bruge understregning eller farvelagt tekst i stedet for.

       The  command  or  function illustration is a pattern that should match all possible invocations.  In some
       cases it is advisable to illustrate several exclusive invocations as is shown in the SYNOPSIS section  of
       this manual page.

EKSEMPLER

       man ls
           Vis manualsiden for punkt (program) ls.

       man man.7
           Display  the  manual  page for macro package man from section 7.  (This is an alternative spelling of
           "man 7 man".)

       man 'man(7)'
           Display the manual page for macro package man from section 7.  (This is another alternative  spelling
           of "man 7 man".  It may be more convenient when copying and pasting cross-references to manual pages.
           Note that the parentheses must normally be quoted to protect them from the shell.)

       man -a intro
           Vis,  i rækkefølge, alle de tilgængelige intro-manualsider indeholdt i denne manual. Det er muligt at
           afbryde mellem successive visninger eller udelade nogle af dem.

       man -t bash | lpr -Pps
           Format the manual page for bash into the default troff or groff format and pipe  it  to  the  printer
           named  ps.  The default output for groff is usually PostScript.  man --help should advise as to which
           processor is bound to the -t option.

       man -l -Tdvi ./foo.1x.gz > ./foo.1x.dvi
           This command will decompress and format the nroff  source  manual  page  ./foo.1x.gz  into  a  device
           independent  (dvi) file.  The redirection is necessary as the -T flag causes output to be directed to
           stdout with no pager.  The output could be viewed with a program such as xdvi  or  further  processed
           into PostScript using a program such as dvips.

       man -k printf
           Søg  i  de  korte beskrivelser og navnene på manualsiderne for nøgleordet printf som regulært udtryk.
           Udskriv resultaterne. Svarer til apropos printf.

       man -f smail
           Slå manualsiderne refereret af smail op og vis den korte beskrivelse for det fundne resultat.  Svarer
           til whatis smail.

OVERBLIK

       Mange  tilvalg  er  tilgængelige  for man for at give så meget fleksibilitet som muligt for slutbrugeren.
       Ændringer kan ske for søgestien, afsnitrækkefølge,  uddataprocessor  og  anden  opførsel  og  operationer
       detaljeret nedenfor.

       If set, various environment variables are interrogated to determine the operation of man.  It is possible
       to set the "catch-all" variable $MANOPT to any string in command line format, with the exception that any
       spaces  used  as  part of an option's argument must be escaped (preceded by a backslash).  man will parse
       $MANOPT prior to parsing its own command line.  Those options requiring an argument will be overridden by
       the same options found on the command line.  To reset all of the  options  set  in  $MANOPT,  -D  can  be
       specified  as  the  initial  command  line  option.   This  will  allow man to "forget" about the options
       specified in $MANOPT, although they must still have been valid.

       Manual pages are normally stored in nroff(1)  format under a directory such as /usr/share/man.   In  some
       installations,  there  may  also  be  preformatted cat pages to improve performance.  See manpath(5)  for
       details of where these files are stored.

       This package supports manual pages in multiple languages, controlled by your locale.  If your system  did
       not  set  this  up  for  you  automatically,  then  you  may  need to set $LC_MESSAGES, $LANG, or another
       system-dependent environment variable to indicate your preferred locale, usually specified in  the  POSIX
       format:

       <language>[_<territory>[.<tegnsæt>[,<version>]]]

       Hvis  den ønskede side er tilgængelig i dit sprog, vil den blive vist i stedet for standardsiden (normalt
       amerikansk-engelsk).

       If you find that the translations supplied with this package are not available in  your  native  language
       and you would like to supply them, please contact the maintainer who will be coordinating such activity.

       Individual  manual pages are normally written and maintained by the maintainers of the program, function,
       or other topic that they document, and are not included with this package.  If you  find  that  a  manual
       page is missing or inadequate, please report that to the maintainers of the package in question.

       For  information  om  andre  funktioner  og  udvidelser  tilgængelige  med denne manualtekstviser, så læs
       venligst dokumenterne leveret med denne pakke.

STANDARDER

       The order of sections to search may be overridden by the environment variable $MANSECT or by the  SECTION
       directive in /etc/manpath.config.  By default it is as follows:

              1 n l 8 3 0 2 3type 3posix 3pm 3perl 3am 5 4 9 6 7

       The formatted manual page is displayed using a pager.  This can be specified in a number of ways, or else
       will fall back to a default (see option -P for details).

       Filtrene  tydes  vis  et  antal  metoder.  Først  tydes  kommandolinjetilvalget  -p  eller miljøvariablen
       $MANROFFSEQ. Hvis -p ikke blev brugt og miljøvariablen ikke var angivet, så fortolkes opstartslinjen  for
       nroff-filen  for  en  forbrænderstrenge.  For at indeholde en gyldig forbrænderstreng, så skal den første
       linje ligne

       '\" <string>

       Hvor streng kan være enhver kombination af bogstaver beskrevet af tilvalget -p nedenfor.

       Hvis ingen af de ovenstående metoder giver filterinformation, så bruges et standardsæt.

       A formatting pipeline is formed from the filters and the primary formatter (nroff or  [tg]roff  with  -t)
       and  executed.  Alternatively, if an executable program mandb_nfmt (or mandb_tfmt with -t)  exists in the
       man tree root, it is executed instead.  It gets passed the manual source file, the  preprocessor  string,
       and optionally the device specified with -T or -E as arguments.

TILVALG

       Non-argument  options  that  are  duplicated  either  on  the  command line, in $MANOPT, or both, are not
       harmful.  For options that require an argument, each duplication  will  override  the  previous  argument
       value.

   Generelle tilvalg
       -C fil, --config-file=fil
              Use this user configuration file rather than the default of ~/.manpath.

       -d, --debug
              Vis fejlsøgningsinformation.

       -D, --default
              Dette tilvalg udstedes normalt som det første tilvalg og nulstiller man's opførsel til standarden.
              Dets  brug  er  at  nulstille  disse  tilvalg, som måske er angivet i $MANOPT. Ethvert tilvalg som
              følger -D vil have deres normale effekt.

       --warnings[=advarsler]
              Enable warnings from groff.  This may be used to perform sanity  checks  on  the  source  text  of
              manual  pages.   warnings  is  a comma-separated list of warning names; if it is not supplied, the
              default  is  "mac".   To  disable  a  groff  warning,   prefix   it   with   "!":   for   example,
              --warnings=mac,!break  enables warnings in the "mac" category and disables warnings in the "break"
              category.  See the “Warnings” node in info groff for a list of available warning names.

   Hovedtilstande for operation
       -f, --whatis
              Approximately equivalent to whatis.   Display  a  short  description  from  the  manual  page,  if
              available.  See whatis(1)  for details.

       -k, --apropos
              Approximately  equivalent  to apropos.  Search the short manual page descriptions for keywords and
              display any matches.  See apropos(1)  for details.

       -K, --global-apropos
              Search for text in all manual pages.  This is a brute-force search, and is  likely  to  take  some
              time;  if  you  can,  you  should  specify a section to reduce the number of pages that need to be
              searched.  Search terms may be simple strings (the default), or regular expressions if the --regex
              option is used.

              Note that this searches the sources of the manual pages, not the rendered text, and so may include
              false positives due to things like comments in source files, or false negatives due to things like
              hyphens being written as "\-" in source files.  Searching the rendered text would be much slower.

       -l, --local-file
              Activate "local" mode.  Format and display local manual files instead  of  searching  through  the
              system's manual collection.  Each manual page argument will be interpreted as an nroff source file
              in  the correct format.  No cat file is produced.  If '-' is listed as one of the arguments, input
              will be taken from stdin.

              If this option is not used, then man will also fall back to interpreting manual page arguments  as
              local  file  names  if the argument contains a "/" character, since that is a good indication that
              the argument refers to a path on the file system.

       -w, --where, --path, --location
              Don't actually display the manual page, but do print the location of the source  nroff  file  that
              would  be  formatted.  If the -a option is also used, then print the locations of all source files
              that match the search criteria.

       -W, --where-cat, --location-cat
              Don't actually display the manual page, but do print the location of  the  preformatted  cat  file
              that  would  be  displayed.   If  the  -a  option  is  also  used, then print the locations of all
              preformatted cat files that match the search criteria.

              If -w and -W are both used, then print both source file and cat file separated by a space.  If all
              of -w, -W, and -a are used, then do this for each possible match.

       -c, --catman
              Dette tilvalg er ikke for generel brug og bør kun bruges af programmet catman.

       -R kodning, --recode=kodning
              Instead of formatting the manual page in the  usual  way,  output  its  source  converted  to  the
              specified  encoding.   If  you  already  know  the  encoding  of the source file, you can also use
              manconv(1)  directly.  However, this option allows you to convert several manual pages to a single
              encoding without having to explicitly state the encoding of each, provided that they were  already
              installed in a structure similar to a manual page hierarchy.

              Consider  using  man-recode(1)   instead  for  converting  multiple  manual pages, since it has an
              interface designed for bulk conversion and so can be much faster.

   Finde manualsider
       -L sprog, --locale=sprog
              man vil normalt bestemme  dit  lokale  sprog  med  et  kald  til  C-funktionen  setlocale(3),  som
              undersøger  diverse  miljøvariabler, muligvis inklusive $LC_MESSAGES og $LANG. For midlertidigt at
              overskrive den afslørede værdi bruges dette tilvalg til at supplere en  sprog-streng  direkte  til
              man.  Bemærk  at  det  ikke  vil  træde  i  kraft før søgningen efter sider rent faktisk begynder.
              Resultatet såsom hjælpebeskeden vil altid blive vist i det oprindeligt bestemte sprog.

       -m system[,...], --systems=system[,...]
              If this system has access to other operating systems' manual pages, they  can  be  accessed  using
              this  option.   To search for a manual page from NewOS's manual page collection, use the option -m
              NewOS.

              Det angivet system kan være en kombination af kommaadskilt operativsystemnavne. For  at  inkludere
              en  søgning  i  manualsiderne  for  udgangspunktets  operativsystem  inkluderes systemnavnet man i
              argumentstrengen. Dette tilvalg vil overskrive miljøvariablen $SYSTEM.

       -M sti, --manpath=sti
              Angiv en alternativ manualsti. Som  standard  bruger  man  manpath-afledt  kode  til  at  bestemme
              søgestien.  Dette  tilvalg  overskriver  miljøvariablen  $MANPATH  og  medfører  at  tilvalget  -m
              ignoreres.

              A path specified as a manpath must be the root of a manual page hierarchy structured into sections
              as described in the man-db manual (under "The manual page system").  To view manual pages  outside
              such hierarchies, see the -l option.

       -S list, -s list, --sections=list
              The  given  list  is  a colon- or comma-separated list of sections, used to determine which manual
              sections to search and in what order.  This option overrides the  $MANSECT  environment  variable.
              (The -s spelling is for compatibility with System V.)

       -e sub-extension, --extension=sub-extension
              Some  systems  incorporate  large  packages  of manual pages, such as those that accompany the Tcl
              package, into the main manual page hierarchy.  To get around the  problem  of  having  two  manual
              pages  with  the  same name such as exit(3), the Tcl pages were usually all assigned to section l.
              As this is unfortunate, it is now possible to put the pages in the correct section, and to  assign
              a  specific  "extension"  to  them,  in  this  case, exit(3tcl).  Under normal operation, man will
              display exit(3)  in preference to exit(3tcl).  To negotiate this situation and to avoid having  to
              know which section the page you require resides in, it is now possible to give man a sub-extension
              string  indicating  which package the page must belong to.  Using the above example, supplying the
              option -e tcl to man will restrict the search to pages having an extension of *tcl.

       -i, --ignore-case
              Ignore case when searching for manual pages.  This is the default.

       -I, --match-case
              Search for manual pages case-sensitively.

       --regex
              Show all pages with any part of either their  names  or  their  descriptions  matching  each  page
              argument as a regular expression, as with apropos(1).  Since there is usually no reasonable way to
              pick a "best" page when searching for a regular expression, this option implies -a.

       --wildcard
              Show  all  pages  with  any  part  of  either their names or their descriptions matching each page
              argument using shell-style wildcards, as with apropos(1)   --wildcard.   The  page  argument  must
              match the entire name or description, or match on word boundaries in the description.  Since there
              is  usually  no  reasonable  way  to pick a "best" page when searching for a wildcard, this option
              implies -a.

       --names-only
              Hvis enten tilvalget --regex eller --wildcard bruges, match kun sidenavne, ikke  sidebeskrivelser,
              som med whatis(1). Ellers, ingen effekt.

       -a, --all
              Som standard vil man afslutte efter visning af den mest egnet manualside den finder. Brug af dette
              tilvalg tvinger man til at vise alle manualsiderne med navne som matcher søgekriteriet.

       -u, --update
              This  option  causes  man  to  update its database caches of installed manual pages.  This is only
              needed in rare situations, and it is normally better to run mandb(8)  instead.

       --no-subpages
              By default, man will try to interpret pairs of manual page names given  on  the  command  line  as
              equivalent  to  a single manual page name containing a hyphen or an underscore.  This supports the
              common pattern of programs that implement a number of subcommands, allowing them to provide manual
              pages for each that can be  accessed  using  similar  syntax  as  would  be  used  to  invoke  the
              subcommands themselves.  For example:

                $ man -aw git diff
                /usr/share/man/man1/git-diff.1.gz

              For at deaktivere denne opførsel så brug tilvalget --no-subpages.

                $ man -aw --no-subpages git diff
                /usr/share/man/man1/git.1.gz
                /usr/share/man/man3/Git.3pm.gz
                /usr/share/man/man1/diff.1.gz

   Kontrol af formateret resultat
       -P tekstviser, --pager=tekstviser
              Specify  which  output  pager to use.  By default, man uses pager, falling back to cat if pager is
              not found or is not executable.  This option overrides the $MANPAGER environment  variable,  which
              in turn overrides the $PAGER environment variable.  It is not used in conjunction with -f or -k.

              The  value  may  be  a  simple command name or a command with arguments, and may use shell quoting
              (backslashes, single quotes, or double  quotes).   It  may  not  use  pipes  to  connect  multiple
              commands;  if you need that, use a wrapper script, which may take the file to display either as an
              argument or on standard input.

       -r prompt, --prompt=prompt
              Hvis en nylig version af less bruges som tekstsøger, så vil man  forsøge  at  angive  den  på  sin
              prompt og vælge nogle fornuftige tilvalg. Standardprompten ser således ud

               Manualside navn(sec) line x

              hvor  navn  benvæner  manualsidenavnet,  sektion benævner sektionen den blev fundet under og x det
              nuværende linjenummer. Dette opnås ved at bruge miljøvariablen $LESS.

              Supplying -r with a string will override this default.  The string may contain  the  text  $MAN_PN
              which  will  be expanded to the name of the current manual page and its section name surrounded by
              "(" and ")".  The string used to produce the default could be expressed as

              \ Manual\ page\ \$MAN_PN\ ?ltline\ %lt?L/%L.:
              byte\ %bB?s/%s..?\ (END):?pB\ %pB\\%..
              (tryk h for hjælp eller q for afslut)

              It is broken into three lines here for the sake of readability only.   For  its  meaning  see  the
              less(1)   manual  page.   The  prompt  string is first evaluated by the shell.  All double quotes,
              back-quotes and backslashes in the prompt must be escaped by a preceding  backslash.   The  prompt
              string  may end in an escaped $ which may be followed by further options for less.  By default man
              sets the -ix8 options.

              The $MANLESS environment variable described below may be used to set a default  prompt  string  if
              none is supplied on the command line.

       -7, --ascii
              When  viewing  a  pure  ascii(7)   manual  page  on  a  7  bit terminal or terminal emulator, some
              characters may not display correctly when using the latin1(7)  device description with GNU  nroff.
              This  option  allows  pure ascii manual pages to be displayed in ascii with the latin1 device.  It
              will not translate any latin1 text.  The following table shows the  translations  performed:  some
              parts of it may only be displayed properly when using GNU nroff's latin1(7)  device.

              Beskrivelse           Oktal   latin1   ascii
              ─────────────────────────────────────────────
              continuation hyphen    255      ‐        -
              bullet (middle dot)    267      •        o
              acute accent           264      ´        '
              multiplication sign    327      ×        x

              If  the  latin1  column  displays correctly, your terminal may be set up for latin1 characters and
              this option is not necessary.  If the latin1 and ascii columns are identical, you are reading this
              page using this option or man did not format this page using the latin1  device  description.   If
              the latin1 column is missing or corrupt, you may need to view manual pages with this option.

              This  option  is  ignored  when using options -t, -H, -T, or -Z and may be useless for nroff other
              than GNU's.

       -E kodning, --encoding=kodning
              Generate output for a character encoding other than  the  default.   For  backward  compatibility,
              encoding  may  be  an  nroff  device  such  as  ascii, latin1, or utf8 as well as a true character
              encoding such as UTF-8.

       --no-hyphenation, --nh
              Normally, nroff will automatically hyphenate text at line breaks even in words that do not contain
              hyphens, if it is necessary to do so to lay out words on a line without excessive  spacing.   This
              option  disables  automatic  hyphenation, so words will only be hyphenated if they already contain
              hyphens.

              If you are writing a manual page and simply want to prevent nroff from hyphenating a  word  at  an
              inappropriate  point,  do  not  use  this option, but consult the nroff documentation instead; for
              instance, you can put "\%" inside a word to indicate that it may be hyphenated at that  point,  or
              put "\%" at the start of a word to prevent it from being hyphenated.

       --no-justification, --nj
              Normally,  nroff  will  automatically  justify  text  to  both margins.  This option disables full
              justification, leaving justified only to the left margin, sometimes called "ragged-right" text.

              If you are writing a manual page  and  simply  want  to  prevent  nroff  from  justifying  certain
              paragraphs, do not use this option, but consult the nroff documentation instead; for instance, you
              can use the ".na", ".nf", ".fi", and ".ad" requests to temporarily disable adjusting and filling.

       -p streng, --preprocessor=streng
              Specify  the  sequence of preprocessors to run before nroff or troff/groff.  Not all installations
              will have a full set of preprocessors.   Some  of  the  preprocessors  and  the  letters  used  to
              designate  them  are:  eqn  (e),  grap  (g), pic (p), tbl (t), vgrind (v), refer (r).  This option
              overrides the $MANROFFSEQ  environment  variable.   zsoelim  is  always  run  as  the  very  first
              preprocessor.

       -t, --troff
              Brug  groff  -mandoc  til at formatere manualsiden til standardud. Tilvalget er ikke krævet sammen
              med -H, -T eller -Z.

       -T[enhed], --troff-device[=enhed]
              This option is used to change groff (or possibly troff's)  output to  be  suitable  for  a  device
              other  than  the default.  It implies -t.  Examples (as of groff 1.23.0) include dvi, latin1, pdf,
              ps, utf8, X75 and X100.

       -H[browser], --html[=browser]
              This option will cause groff to produce HTML output,  and  will  display  that  output  in  a  web
              browser.  The choice of browser is determined by the optional browser argument if one is provided,
              by  the  $BROWSER  environment  variable,  or  by a compile-time default if that is unset (usually
              lynx).  This option implies -t, and will only work with GNU troff.

       -X[dpi], --gxditview[=dpi]
              This option displays the output of groff in a graphical window using the gxditview  program.   The
              dpi  (dots  per  inch)  may be 75, 75-12, 100, or 100-12, defaulting to 75; the -12 variants use a
              12-point base font.  This option implies  -T  with  the  X75,  X75-12,  X100,  or  X100-12  device
              respectively.

       -Z, --ditroff
              groff  vil køre troff og så bruge en passende efterbrænder til at fremstille et resultat egnet for
              den valgte enhed. Hvis groff -mandoc er groff, så vil  dette  tilvalg  sendes  til  groff  og  vil
              undertrykke brugen af en efterbrænder. -t er underforstået.

    hjælp
       -?, --help
              Vis en hjælpebesked og afslut.

       --usage
              Vis en kort hjælpebesked og afslut.

       -V, --version
              Vis versionsinformation.

AFSLUT-STATUS

       0      Programkørsel endt uden fejl.

       1      Brugs-, syntaks- eller konfigurationsfilfejl.

       2      Operationel fejl.

       3      En underproces returnerede en afslutningsstatus forskellig fra nul.

       16     Mindst en af siderne/filerne/nøgleordene fandtes ikke eller blev ikke matchet.

MILJØ

       MANPATH
              If $MANPATH is set, its value is used as the path to search for manual pages.

              See  the  SEARCH  PATH  section  of  manpath(5)  for the default behaviour and details of how this
              environment variable is handled.

       MANROFFOPT
              Every time man invokes the formatter (nroff, troff, or groff), it adds the contents of $MANROFFOPT
              to the formatter's command line.

              For example, MANROFFOPT=-P-i tells the formatter to use italic text (which is  only  supported  by
              some terminals) rather than underlined text.

       MANROFFSEQ
              If $MANROFFSEQ is set, its value is used to determine the set of preprocessors to pass each manual
              page through.  The default preprocessor list is system dependent.

       MANSECT
              If  $MANSECT  is  set, its value is a colon-delimited list of sections and it is used to determine
              which manual sections to search and in what order.  The default is "1 n l 8 3 0 2 3type 3posix 3pm
              3perl 3am 5 4 9 6 7", unless overridden by the SECTION directive in /etc/manpath.config.

       MANPAGER, PAGER
              If $MANPAGER or $PAGER is set ($MANPAGER is used in preference), its value is used as the name  of
              the  program  used  to display the manual page.  By default, pager is used, falling back to cat if
              pager is not found or is not executable.

              The value may be a simple command name or a command with arguments,  and  may  use  shell  quoting
              (backslashes,  single  quotes,  or  double  quotes).   It  may  not  use pipes to connect multiple
              commands; if you need that, use a wrapper script, which may take the file to display either as  an
              argument or on standard input.

       MANLESS
              If  $MANLESS is set, its value will be used as the default prompt string for the less pager, as if
              it had been passed using the -r option (so any occurrences of the text $MAN_PN will be expanded in
              the same way).  For example, if you want to set the prompt string unconditionally  to  “my  prompt
              string”,  set  $MANLESS  to ‘-Psmy prompt string’.  Using the -r option overrides this environment
              variable.

       BROWSER
              If $BROWSER is set, its value is a colon-delimited list of commands, each of which in turn is used
              to try to start a web browser for man --html.  In each command,  %s  is  replaced  by  a  filename
              containing  the  HTML  output  from  groff, %% is replaced by a single percent sign (%), and %c is
              replaced by a colon (:).

       SYSTEM Hvis $SYSTEM er angivet, vil det have den samme effekt,  som  hvis  den  var  blevet  angivet  som
              argument for tilvalget -m.

       MANOPT If  $MANOPT  is  set,  it  will  be  parsed prior to man's command line and is expected to be in a
              similar format.  As all of the other man  specific  environment  variables  can  be  expressed  as
              command  line  options,  and are thus candidates for being included in $MANOPT it is expected that
              they will become obsolete.  N.B.  All spaces that should be interpreted as  part  of  an  option's
              argument must be escaped.

       MANWIDTH
              If  $MANWIDTH  is  set,  its  value  is  used  as the line length for which manual pages should be
              formatted.  If it is not set, manual pages will be formatted with a line length appropriate to the
              current terminal (using the value of $COLUMNS, and ioctl(2)  if available, or falling back  to  80
              characters if neither is available).  Cat pages will only be saved when the default formatting can
              be used, that is when the terminal line length is between 66 and 80 characters.

       MAN_KEEP_FORMATTING
              Normally,  when  output  is  not  being  directed  to  a  terminal  (such as to a file or a pipe),
              formatting characters are discarded to make it easier to read the result  without  special  tools.
              However,  if  $MAN_KEEP_FORMATTING  is set to any non-empty value, these formatting characters are
              retained.  This may be useful for wrappers around man that can interpret formatting characters.

       MAN_KEEP_STDERR
              Normally, when output is being directed to a terminal (usually to a pager), any error output  from
              the  command  used to produce formatted versions of manual pages is discarded to avoid interfering
              with the pager's display.  Programs such as groff often produce relatively  minor  error  messages
              about  typographical  problems such as poor alignment, which are unsightly and generally confusing
              when displayed along with the manual page.  However, some users want to see them  anyway,  so,  if
              $MAN_KEEP_STDERR is set to any non-empty value, error output will be displayed as usual.

       MAN_DISABLE_SECCOMP
              On  Linux,  man  normally  confines  subprocesses  that  handle  untrusted data using a seccomp(2)
              sandbox.  This makes it safer to run complex parsing code over arbitrary manual  pages.   If  this
              goes  wrong  for  some  reason  unrelated  to the content of the page being displayed, you can set
              $MAN_DISABLE_SECCOMP to any non-empty value to disable the sandbox.

       PIPELINE_DEBUG
              If the $PIPELINE_DEBUG environment variable is set to "1", then man will print debugging  messages
              to standard error describing each subprocess it runs.

       LANG, LC_MESSAGES
              Afhængig  af  system  og  implementering,  vil enten en af eller begge $LANG og $LC_MESSAGES blive
              spurgt  for  den  aktuelle  beskeds  sprog.   man  vil  vise  dets  beskeder  i  det  sprog  (hvis
              tilgængeligt). Se setlocale(3) for mere udførlige detaljer.

FILER

       /etc/manpath.config
              konfigurationsfil for man-db.

       /usr/share/man
              Et globalt manualsidehierarki.

STANDARDS

       POSIX.1-2001, POSIX.1-2008, POSIX.1-2017.

SE OGSÅ

       apropos(1), groff(1), less(1), manpath(1), nroff(1), troff(1), whatis(1), zsoelim(1), manpath(5), man(7),
       catman(8), mandb(8)

       Documentation for some packages may be available in other formats, such as info(1)  or HTML.

HISTORIK

       1990, 1991 – oprindelig skrevet af John W. Eaton (jwe@che.utexas.edu).

       23.    dec    1992:   Rik   Faith   (faith@cs.unc.edu)   anvendte   fejlrettelser   af   Willem   Kasdorp
       (wkasdo@nikhefk.nikef.nl).

       30th April 1994  –  23rd  February  2000:  Wilf.  (G.Wilford@ee.surrey.ac.uk)  has  been  developing  and
       maintaining this package with the help of a few dedicated people.

       30.  oktober  1996  –  30. marts 2001: Fabrizio Polacco <fpolacco@debian.org> vedligeholdte og forberedte
       denne pakke for Debianprojektet med hjælp fra hele fællesskabet.

       31. marts 2001 – til i dag: Colin Watson <cjwatson@debian.org> udvikler og vedligeholder nu man-db.

FEJL

       https://gitlab.com/man-db/man-db/-/issues
       https://savannah.nongnu.org/bugs/?group=man-db

2.13.1                                             2025-05-02                                             MAN(1)