Many shell when used, in particular La-screen terminal, is more convenient to use, and can use
echo "Did you know that:" ;whatis $(ls /bin | shuf -n 1)
Code added to the .bashrc file in your home directory, manjaro my own use 18.1.4, shell is bash
new
https://sourceware.org/gdb/current/onlinedocs/gdb/Memory.html#Memory