gdb.info: Shell Commands

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Shell commands

If you need to execute occasional shell commands during your debugging
session, there is no need to leave or suspend GDB; you can just use the
`shell' command.
`shell COMMAND STRING'
     Invoke a standard shell to execute COMMAND STRING.  If it exists,
     the environment variable `SHELL' determines which shell to run.
     Otherwise GDB uses the default shell (`/bin/sh' on Unix systems,
     `COMMAND.COM' on MS-DOS, etc.).
   The utility `make' is often needed in development environments.  You
do not have to use the `shell' command for this purpose in GDB:
`make MAKE-ARGS'
     Execute the `make' program with the specified arguments.  This is
     equivalent to `shell make MAKE-ARGS'.