gdb

The GNU Debugger. More information: https://www.gnu.org/software/gdb.

• Debug an executable:

gdb executable

• Attach a process to gdb:

gdb -p procID

• Debug with a core file:

gdb -c core executable

• Execute given GDB commands upon start:

gdb -ex "commands" executable

• Start gdb and pass arguments to the executable:

gdb --args executable argument1 argument2