Before you go for installation, check if you already have gdb installed on your Unix system by issuing the following command:
If GDB is installed, then it will display all the available options within your GDB. If GDB is not installed, then proceed for a fresh installation.
You can install GDB on your system by following the simple steps discussed below.
step 1: Make sure you have the prerequisites for installing gdb:
An ANSI-compliant C compiler (gcc is recommended - note that gdb can debug codes generated by other compilers)
115 MB of free disk space is required on the partition on which you're going to build gdb.
20 MB of free disk space is required on the partition on which you're going to install gdb.
step 2: Use the following command to install gdb on linux machine.
$ sudo apt-get install libc6-dbg gdb valgrind
step 3: Now use the following command to find the help information.
You now have gdb installed on your system and it is ready to use.