Debugging with GDB Manual The GNU Source-Level Debugger (769148-001, March 2014)

info This command (abbreviated i) is for describing the state of your program. For example,
you can list the arguments given to your program with info args, list the registers
currently in use with info registers, or list the breakpoints you have set with info
breakpoints. You can get a complete list of the info sub-commands with help info.
set You can assign the result of an expression to an environment variable with set. For
example, you can set the GDB prompt to a $-sign with set prompt $.
show In contrast to info, show is for describing the state of GDB itself. You can change most
of the things you can show, by using the related command set; for example, you can
control what number system is used for displays with set radix, or simply inquire which
is currently in use with show radix.
To display all the settable parameters and their current values, you can use show with no
arguments; you may also use info set. Both commands produce the same display.
Here are three miscellaneous show subcommands, all of which are exceptional in lacking
corresponding set commands:
show version Show what version of GDB is running. You should include this information
in GDB bug-reports. If multiple versions of GDB are in use at your site, you
may need to determine which version of GDB you are running; as GDB
evolves, new commands are introduced, and old ones may wither away.
Also, many system vendors ship variant versions of GDB, and there are
variant versions of GDB in GNU/Linux distributions as well. The version
number is the same as the one announced when you start GDB.
show copying Display information about permission for copying GDB.
show warranty Display the GNU “NO WARRANTY” statement, or a warranty, if your version
of GDB comes with one.
Getting help 27