glibc

root@kali:~# getconf --help
Usage: getconf [-v SPEC] VAR
  or:  getconf [-v SPEC] PATH_VAR PATH

Get the configuration value for variable VAR, or for variable PATH_VAR
for path PATH.  If SPEC is given, give values for compilation
environment SPEC.

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# getent --help
Usage: getent [OPTION...] database [key ...]
Get entries from administrative database.

  -A, --no-addrconfig        do not filter out unsupported IPv4/IPv6 addresses
                             (with ahosts*)
  -i, --no-idn               disable IDN encoding
  -s, --service=CONFIG       Service configuration to be used
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Supported databases:
ahosts ahostsv4 ahostsv6 aliases ethers group gshadow hosts initgroups
netgroup networks passwd protocols rpc services shadow

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# iconv --help
Usage: iconv [OPTION...] [FILE...]
Convert encoding of given files from one encoding to another.

 Input/Output format specification:
  -f, --from-code=NAME       encoding of original text
  -t, --to-code=NAME         encoding for output

 Information:
  -l, --list                 list all known coded character sets

 Output control:
  -c                         omit invalid characters from output
  -o, --output=FILE          output file
  -s, --silent               suppress warnings
      --verbose              print progress information

  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# iconvconfig --help
Usage: iconvconfig [OPTION...] [DIR...]
Create fastloading iconv module configuration file.

      --nostdlib             Do not search standard directories, only those on
                             the command line
  -o, --output=FILE          Put output in FILE instead of installed location
                             (--prefix does not apply to FILE)
      --prefix=PATH          Prefix used for all file accesses
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# ld.so --help
Usage: ld.so [OPTION]... EXECUTABLE-FILE [ARGS-FOR-PROGRAM...]
You have invoked 'ld.so', the program interpreter for dynamically-linked
ELF programs.  Usually, the program interpreter is invoked automatically
when a dynamically-linked executable is started.

You may invoke the program interpreter program directly from the command
line to load and run an ELF executable file; this is like executing that
file itself, but always uses the program interpreter you invoked,
instead of the program interpreter specified in the executable file you
run.  Invoking the program interpreter directly provides access to
additional diagnostics, and changing the dynamic linker behavior without
setting environment variables (which would be inherited by subprocesses).

  --list                list all dependencies and how they are resolved
  --verify              verify that given object really is a dynamically linked
                        object we can handle
  --inhibit-cache       Do not use /etc/ld.so.cache
  --library-path PATH   use given PATH instead of content of the environment
                        variable LD_LIBRARY_PATH
  --glibc-hwcaps-prepend LIST
                        search glibc-hwcaps subdirectories in LIST
  --glibc-hwcaps-mask LIST
                        only search built-in subdirectories if in LIST
  --inhibit-rpath LIST  ignore RUNPATH and RPATH information in object names
                        in LIST
  --audit LIST          use objects named in LIST as auditors
  --preload LIST        preload objects named in LIST
  --argv0 STRING        set argv[0] to STRING before running
  --list-tunables       list all tunables with minimum and maximum values
  --list-diagnostics    list diagnostics information
  --help                display this help and exit
  --version             output version information and exit

This program interpreter self-identifies as: /lib64/ld-linux-x86-64.so.2

Shared library search path:
  (libraries located via /etc/ld.so.cache)
  /lib/x86_64-linux-gnu (system search path)
  /usr/lib/x86_64-linux-gnu (system search path)
  /lib (system search path)
  /usr/lib (system search path)

Subdirectories of glibc-hwcaps directories, in priority order:
  x86-64-v4
  x86-64-v3
  x86-64-v2

root@kali:~# ldconfig --help
Usage: ldconfig [OPTION...]
Configure Dynamic Linker Run Time Bindings.

  -c, --format=FORMAT        Format to use: new (default), old, or compat
  -C CACHE                   Use CACHE as cache file
  -f CONF                    Use CONF as configuration file
  -i, --ignore-aux-cache     Ignore auxiliary cache file
  -l                         Manually link individual libraries.
  -n                         Only process directories specified on the command
                             line.  Don't build cache.
  -N                         Don't build cache
  -p, --print-cache          Print cache
  -r ROOT                    Change to and use ROOT as root directory
  -v, --verbose              Generate verbose messages
  -X                         Don't update symbolic links
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# ldd --help
Usage: ldd [OPTION]... FILE...
      --help              print this help and exit
      --version           print version information and exit
  -d, --data-relocs       process data relocations
  -r, --function-relocs   process data and function relocations
  -u, --unused            print unused direct dependencies
  -v, --verbose           print all information

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# locale --help
Usage: locale [OPTION...] NAME
  or:  locale [OPTION...] [-a|-m]
Get locale-specific information.

 System information:
  -a, --all-locales          Write names of available locales
  -m, --charmaps             Write names of available charmaps

 Modify output format:
  -c, --category-name        Write names of selected categories
  -k, --keyword-name         Write names of selected keywords
  -v, --verbose              Print more information

  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# localedef --help
Usage: localedef [OPTION...] NAME
  or:  localedef [OPTION...] [--add-to-archive|--delete-from-archive] FILE...
  or:  localedef [OPTION...] --list-archive [FILE]
Compile locale specification

 Input Files:
  -f, --charmap=FILE         Symbolic character names defined in FILE
  -i, --inputfile=FILE       Source definitions are found in FILE
  -u, --repertoire-map=FILE  FILE contains mapping from symbolic names to UCS4
                             values

 Output control:
  -c, --force                Create output even if warning messages were issued
                            
      --no-hard-links        Do not create hard links between installed
                             locales
      --no-warnings=<warnings>   Comma-separated list of warnings to disable;
                             supported warnings are: ascii, intcurrsym
      --posix                Strictly conform to POSIX
      --prefix=PATH          Optional output file prefix
      --quiet                Suppress warnings and information messages
  -v, --verbose              Print more messages
      --warnings=<warnings>  Comma-separated list of warnings to enable;
                             supported warnings are: ascii, intcurrsym

 Archive control:
      --add-to-archive       Add locales named by parameters to archive
  -A, --alias-file=FILE      locale.alias file to consult when making archive
      --big-endian           Generate big-endian output
      --delete-from-archive  Remove locales named by parameters from archive
      --list-archive         List content of archive
      --little-endian        Generate little-endian output
      --no-archive           Don't add new data to archive
      --replace              Replace existing archive content

  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

System's directory for character maps : /usr/share/i18n/charmaps
		       repertoire maps: /usr/share/i18n/repertoiremaps
		       locale path    : /usr/lib/locale:/usr/share/i18n
For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# pldd --help
Usage: pldd [OPTION...] PID
List dynamic shared objects loaded into process.

  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# tzselect --help
Usage: tzselect [--version] [--help] [-c COORD] [-n LIMIT]
Select a timezone interactively.

Options:

  -c COORD
    Instead of asking for continent and then country and then city,
    ask for selection from time zones whose largest cities
    are closest to the location with geographical coordinates COORD.
    COORD should use ISO 6709 notation, for example, '-c +4852+00220'
    for Paris (in degrees and minutes, North and East), or
    '-c -35-058' for Buenos Aires (in degrees, South and West).

  -n LIMIT
    Display at most LIMIT locations when -c is used (default 10).

  --version
    Output version information.

  --help
    Output this help.

Report bugs to <http://www.debian.org/Bugs/>.

root@kali:~# zdump --help
zdump: usage: zdump OPTIONS TIMEZONE ...
Options include:
  -c [L,]U   Start at year L (default -500), end before year U (default 2500)
  -t [L,]U   Start at time L, end before time U (in seconds since 1970)
  -i         List transitions briefly (format is experimental)
  -v         List transitions verbosely
  -V         List transitions a bit less verbosely
  --help     Output this help
  --version  Output version info

Report bugs to <http://www.debian.org/Bugs/>.

root@kali:~# zic --help
zic: usage is zic [ --version ] [ --help ] [ -v ] \
	[ -b {slim|fat} ] [ -d directory ] [ -l localtime ] [ -L leapseconds ] \
	[ -p posixrules ] [ -r '[@lo][/@hi]' ] [ -R '@hi' ] \
	[ -t localtime-link ] \
	[ filename ... ]

Report bugs to <http://www.debian.org/Bugs/>.

root@kali:~# gencat --help
Usage: gencat [OPTION...] -o OUTPUT-FILE [INPUT-FILE]...
  or:  gencat [OPTION...] [OUTPUT-FILE [INPUT-FILE]...]
Generate message catalog.

  -H, --header=NAME          Create C header file NAME containing symbol
                             definitions
      --new                  Do not use existing catalog, force new output file
                            
  -o, --output=NAME          Write output to file NAME
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

If INPUT-FILE is -, input is read from standard input.  If OUTPUT-FILE
is -, output is written to standard output.

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# memusage --help
Usage: memusage [OPTION]... PROGRAM [PROGRAMOPTION]...
Profile memory usage of PROGRAM.

   -n,--progname=NAME     Name of the program file to profile
   -p,--png=FILE          Generate PNG graphic and store it in FILE
   -d,--data=FILE         Generate binary data file and store it in FILE
   -u,--unbuffered        Don't buffer output
   -b,--buffer=SIZE       Collect SIZE entries before writing them out
      --no-timer          Don't collect additional information through timer
   -m,--mmap              Also trace mmap & friends

   -?,--help              Print this help and exit
      --usage             Give a short usage message
   -V,--version           Print version information and exit

 The following options only apply when generating graphical output:
   -t,--time-based        Make graph linear in time
   -T,--total             Also draw graph of total memory use
      --title=STRING      Use STRING as title of the graph
   -x,--x-size=SIZE       Make graphic SIZE pixels wide
   -y,--y-size=SIZE       Make graphic SIZE pixels high

Mandatory arguments to long options are also mandatory for any corresponding
short options.


For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# memusagestat --help
Usage: memusagestat [OPTION...] DATAFILE [OUTFILE]
Generate graphic from memory profiling data

  -o, --output=FILE          Name output file
  -s, --string=STRING        Title string used in output graphic
  -t, --time                 Generate output linear to time (default is linear
                             to number of function calls)
  -T, --total                Also draw graph for total memory consumption
  -x, --x-size=VALUE         Make output graphic VALUE pixels wide
  -y, --y-size=VALUE         Make output graphic VALUE pixels high
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# mtrace --help
Usage: mtrace [OPTION]... [Binary] MtraceData
  --help       print this help, then exit
  --version    print version number, then exit

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# sotruss --help
Usage: sotruss [OPTION...] [--] EXECUTABLE [EXECUTABLE-OPTION...]
  -F, --from FROMLIST     Trace calls from objects on FROMLIST
  -T, --to TOLIST         Trace calls to objects on TOLIST

  -e, --exit              Also show exits from the function calls
  -f, --follow            Trace child processes
  -o, --output FILENAME   Write output to FILENAME (or FILENAME. in case
			  -f is also used) instead of standard error

  -?, --help              Give this help list
      --usage             Give a short usage message
      --version           Print program version

Mandatory arguments to long options are also mandatory for any corresponding
short options.

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# sprof --help
Usage: sprof [OPTION...] SHOBJ [PROFDATA]
Read and display shared object profiling data.

 Output selection:
  -c, --call-pairs           print list of count paths and their number of use
  -p, --flat-profile         generate flat profile with counts and ticks
  -q, --graph                generate call graph

  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.

root@kali:~# locale-gen -h
Generating locales (this might take a while)...
  en_US.UTF-8... done
Generation complete.

root@kali:~# update-locale -h
Usage: update-locale [OPTIONS] [LANG=locale] [LC_NUMERIC=locale] ...
Options:
   --help              display this message and exit
   --reset             ignore variables defined in the locale file
   --locale-file=FILE  file containing locale variables
                       (Default: /etc/locale.conf)
   --no-checks         do not perform sanity checks on locale variables

root@kali:~# man validlocale
validlocale(8)                                                   validlocale(8)

NAME
     validlocale - Test if a given locale is available

SYNTAX
     validlocale <locale>

DESCRIPTION
     Test  if  the  locale  given  as argument is a valid locale.  If it isn't,
     print on stdout the string to add to /etc/locale.gen  to  make  locale-gen
     generate the locale (if it exists at all).

FILES
     /usr/sbin/validlocale
     /usr/share/i18n/SUPPORTED

ENVIRONMENT VARIABLES
     DEFAULTCHARSET
            Which  charset  to  assume  if the given locale is missing from the
            list of supported locales.

EXAMPLES
     If you give a valid locale as parameter, it outputs  a  string  specifying
     this on stderr:

            % validlocale C
            locale 'C' valid and available

     When  given  a  invalid  (not generated or just nonexistent), it outputs a
     string on stderr telling that this is an invalid locale, and a  string  to
     stdout  with the string to add to /etc/locale.gen to have this locale gen-
     erated:

            % validlocale de_AU@euro
            locale 'de_AU@euro' not available
            de_AU@euro ISO-8859-15

AUTHORS
     Petter Reinholdtsen <pere@hungry.com>

SEE ALSO
     locale-gen(8), localedef(1), locale(1)

Petter Reinholdtsen                   0.1                        validlocale(8)

root@kali:~# nscd --help
Usage: nscd [OPTION...]
Name Service Cache Daemon.

  -d, --debug                Do not fork and display messages on the current
                             tty
  -f, --config-file=NAME     Read configuration data from NAME
  -F, --foreground           Do not fork, but otherwise behave like a daemon
  -g, --statistics           Print current configuration statistics
  -i, --invalidate=TABLE     Invalidate the specified cache
  -K, --shutdown             Shut the server down
  -p, --print=NAME           Print contents of the offline cache file NAME
  -t, --nthreads=NUMBER      Start NUMBER threads
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Supported tables:
passwd group hosts services netgroup

For bug reporting instructions, please see:
<http://www.debian.org/Bugs/>.