gdb

root@kali:~# gcore -h
Usage: /usr/bin/gcore [-h|--help] [-v|--version]
                      [-a] [-o prefix] [-d data-directory]
                      pid1 [pid2...pidN]

Create a core file of a running program using GDB.

  -h, --help         Print this message then exit.
  -v, --version      Print version information then exit.
  -a                 Dump all memory mappings.
  -o prefix          Use 'prefix.pid' as the core file name.
                       The default prefix is 'core'.
  -d dir             Pass '--data-directory dir' as an argument
                       to GDB.

root@kali:~# gdb -h
This is the GNU debugger.  Usage:

    gdb [options] [executable-file [core-file or process-id]]
    gdb [options] --args executable-file [inferior-arguments ...]

Selection of debuggee and its files:

  --args             Arguments after executable-file are passed to inferior.
  --core=COREFILE    Analyze the core dump COREFILE.
  --exec=EXECFILE    Use EXECFILE as the executable.
  --pid=PID          Attach to running process PID.
  --directory=DIR    Search for source files in DIR.
  --se=FILE          Use FILE as symbol file and executable file.
  --symbols=SYMFILE  Read symbols from SYMFILE.
  --readnow          Fully read symbol files on first access.
  --readnever        Do not read symbol files.
  --write            Set writing into executable and core files.

Initial commands and command files:

  --command=FILE, -x Execute GDB commands from FILE.
  --init-command=FILE, -ix
		     Like -x but execute commands before loading inferior.
  --eval-command=COMMAND, -ex
		     Execute a single GDB command.
		     May be used multiple times and in conjunction
		     with --command.
  --init-eval-command=COMMAND, -iex
		     Like -ex but before loading inferior.
  --nh               Do not read ~/.gdbinit.
  --nx               Do not read any .gdbinit files in any directory.

Output and user interface control:

  --fullname         Output information used by emacs-GDB interface.
  --interpreter=INTERP
		     Select a specific interpreter / user interface.
  --tty=TTY          Use TTY for input/output by the program being debugged.
  -w                 Use the GUI interface.
  --nw               Do not use the GUI interface.
  --tui              Use a terminal user interface.
  -q, --quiet, --silent
		     Do not print version number on startup.

Operating modes:

  --batch            Exit after processing options.
  --batch-silent     Like --batch, but suppress all gdb stdout output.
  --return-child-result
		     GDB exit code will be the child's exit code.
  --configuration    Print details about GDB configuration and then exit.
  --help             Print this message and then exit.
  --version          Print version information and then exit.

Remote debugging options:

  -b BAUDRATE        Set serial port baud rate used for remote debugging.
  -l TIMEOUT         Set timeout in seconds for remote debugging.

Other options:

  --cd=DIR           Change current directory to DIR.
  --data-directory=DIR, -D
		     Set GDB's data-directory to DIR.

At startup, GDB reads the following early init files and executes their
commands:
   None found.

At startup, GDB reads the following init files and executes their commands:
   * system-wide init files: /etc/gdb/gdbinit

For more information, type "help" from within GDB, or consult the
GDB manual (available as on-line info or a printed manual).

Report bugs to <https://www.gnu.org/software/gdb/bugs/>.

You can ask GDB-related questions on the GDB users mailing list
(gdb@sourceware.org) or on GDB's IRC channel (#gdb on Libera.Chat).

root@kali:~# gdb-add-index -h
Usage: gdb-add-index [-h|--help] [-v|--version] [--dwarf-5] FILENAME

Add a .gdb_index section to FILENAME to facilitate faster debug
information loading by GDB.

  -h, --help         Print this message then exit.
  -v, --version      Print version information then exit.
  --dwarf-5          Add the DWARF-5 style .debug_names section
                       instead of .gdb_index.

root@kali:~# gdbtui -h
This is the GNU debugger.  Usage:

    gdb [options] [executable-file [core-file or process-id]]
    gdb [options] --args executable-file [inferior-arguments ...]

Selection of debuggee and its files:

  --args             Arguments after executable-file are passed to inferior.
  --core=COREFILE    Analyze the core dump COREFILE.
  --exec=EXECFILE    Use EXECFILE as the executable.
  --pid=PID          Attach to running process PID.
  --directory=DIR    Search for source files in DIR.
  --se=FILE          Use FILE as symbol file and executable file.
  --symbols=SYMFILE  Read symbols from SYMFILE.
  --readnow          Fully read symbol files on first access.
  --readnever        Do not read symbol files.
  --write            Set writing into executable and core files.

Initial commands and command files:

  --command=FILE, -x Execute GDB commands from FILE.
  --init-command=FILE, -ix
		     Like -x but execute commands before loading inferior.
  --eval-command=COMMAND, -ex
		     Execute a single GDB command.
		     May be used multiple times and in conjunction
		     with --command.
  --init-eval-command=COMMAND, -iex
		     Like -ex but before loading inferior.
  --nh               Do not read ~/.gdbinit.
  --nx               Do not read any .gdbinit files in any directory.

Output and user interface control:

  --fullname         Output information used by emacs-GDB interface.
  --interpreter=INTERP
		     Select a specific interpreter / user interface.
  --tty=TTY          Use TTY for input/output by the program being debugged.
  -w                 Use the GUI interface.
  --nw               Do not use the GUI interface.
  --tui              Use a terminal user interface.
  -q, --quiet, --silent
		     Do not print version number on startup.

Operating modes:

  --batch            Exit after processing options.
  --batch-silent     Like --batch, but suppress all gdb stdout output.
  --return-child-result
		     GDB exit code will be the child's exit code.
  --configuration    Print details about GDB configuration and then exit.
  --help             Print this message and then exit.
  --version          Print version information and then exit.

Remote debugging options:

  -b BAUDRATE        Set serial port baud rate used for remote debugging.
  -l TIMEOUT         Set timeout in seconds for remote debugging.

Other options:

  --cd=DIR           Change current directory to DIR.
  --data-directory=DIR, -D
		     Set GDB's data-directory to DIR.

At startup, GDB reads the following early init files and executes their
commands:
   None found.

At startup, GDB reads the following init files and executes their commands:
   * system-wide init files: /etc/gdb/gdbinit

For more information, type "help" from within GDB, or consult the
GDB manual (available as on-line info or a printed manual).

Report bugs to <https://www.gnu.org/software/gdb/bugs/>.

You can ask GDB-related questions on the GDB users mailing list
(gdb@sourceware.org) or on GDB's IRC channel (#gdb on Libera.Chat).

root@kali:~# gstack -h
Usage: /usr/bin/gstack [-h|--help] [-v|--version] PID
Print a stack trace of a running program

  -h, --help         Print this message then exit.
  -v, --version      Print version information then exit.

root@kali:~# gdb-multiarch -h
This is the GNU debugger.  Usage:

    gdb [options] [executable-file [core-file or process-id]]
    gdb [options] --args executable-file [inferior-arguments ...]

Selection of debuggee and its files:

  --args             Arguments after executable-file are passed to inferior.
  --core=COREFILE    Analyze the core dump COREFILE.
  --exec=EXECFILE    Use EXECFILE as the executable.
  --pid=PID          Attach to running process PID.
  --directory=DIR    Search for source files in DIR.
  --se=FILE          Use FILE as symbol file and executable file.
  --symbols=SYMFILE  Read symbols from SYMFILE.
  --readnow          Fully read symbol files on first access.
  --readnever        Do not read symbol files.
  --write            Set writing into executable and core files.

Initial commands and command files:

  --command=FILE, -x Execute GDB commands from FILE.
  --init-command=FILE, -ix
		     Like -x but execute commands before loading inferior.
  --eval-command=COMMAND, -ex
		     Execute a single GDB command.
		     May be used multiple times and in conjunction
		     with --command.
  --init-eval-command=COMMAND, -iex
		     Like -ex but before loading inferior.
  --nh               Do not read ~/.gdbinit.
  --nx               Do not read any .gdbinit files in any directory.

Output and user interface control:

  --fullname         Output information used by emacs-GDB interface.
  --interpreter=INTERP
		     Select a specific interpreter / user interface.
  --tty=TTY          Use TTY for input/output by the program being debugged.
  -w                 Use the GUI interface.
  --nw               Do not use the GUI interface.
  --tui              Use a terminal user interface.
  -q, --quiet, --silent
		     Do not print version number on startup.

Operating modes:

  --batch            Exit after processing options.
  --batch-silent     Like --batch, but suppress all gdb stdout output.
  --return-child-result
		     GDB exit code will be the child's exit code.
  --configuration    Print details about GDB configuration and then exit.
  --help             Print this message and then exit.
  --version          Print version information and then exit.

Remote debugging options:

  -b BAUDRATE        Set serial port baud rate used for remote debugging.
  -l TIMEOUT         Set timeout in seconds for remote debugging.

Other options:

  --cd=DIR           Change current directory to DIR.
  --data-directory=DIR, -D
		     Set GDB's data-directory to DIR.

At startup, GDB reads the following early init files and executes their
commands:
   None found.

At startup, GDB reads the following init files and executes their commands:
   * system-wide init files: /etc/gdb/gdbinit

For more information, type "help" from within GDB, or consult the
GDB manual (available as on-line info or a printed manual).

Report bugs to <https://www.gnu.org/software/gdb/bugs/>.

You can ask GDB-related questions on the GDB users mailing list
(gdb@sourceware.org) or on GDB's IRC channel (#gdb on Libera.Chat).

root@kali:~# gdbserver --help
Usage:	gdbserver [OPTIONS] COMM PROG [ARGS ...]
	gdbserver [OPTIONS] --attach COMM PID
	gdbserver [OPTIONS] --multi COMM

COMM may either be a tty device (for serial debugging),
HOST:PORT to listen for a TCP connection, or '-' or 'stdio' to use 
stdin/stdout of gdbserver.
PROG is the executable program.  ARGS are arguments passed to inferior.
PID is the process ID to attach to, when --attach is specified.

Operating modes:

  --attach              Attach to running process PID.
  --multi               Start server without a specific program, and
                        only quit when explicitly commanded.
  --once                Exit after the first connection has closed.
  --help                Print this message and then exit.
  --version             Display version information and exit.

Other options:

  --wrapper WRAPPER --  Run WRAPPER to start new programs.
  --disable-randomization
                        Run PROG with address space randomization disabled.
  --no-disable-randomization
                        Don't disable address space randomization when
                        starting PROG.
  --startup-with-shell
                        Start PROG using a shell.  I.e., execs a shell that
                        then execs PROG.  (default)
  --no-startup-with-shell
                        Exec PROG directly instead of using a shell.
                        Disables argument globbing and variable substitution
                        on UNIX-like systems.

Debug options:

  --debug[=OPT1,OPT2,...]
                        Enable debugging output.
                          Options:
                            all, threads, event-loop, remote
                          With no options, 'threads' is assumed.
                          Prefix an option with '-' to disable
                          debugging of that component.
  --debug-format=OPT1[,OPT2,...]
                        Specify extra content in debugging output.
                          Options:
                            all
                            none
                            timestamp
  --disable-packet=OPT1[,OPT2,...]
                        Disable support for RSP packets or features.
                          Options:
                            vCont, vConts, T, Tthread, qC, qfThreadInfo and
                            threads (disable all threading packets).

For more information, consult the GDB manual (available as on-line 
info or a printed manual).
Report bugs to "<http://www.gnu.org/software/gdb/bugs/>".