Modem Manager GUI creates a database named sms.gdbm to store all the SMS details. Currently Modem Manager GUI is not providing a feature to simply delete all received/sent messages. So I'm trying to create a program to remove those records from its database (sms.gdbm). But first I want to know the structure of the sms.gdbm database. What are the databases it contains, also table and their column names. So are there any CLI or GUI programs to display the structure of a *.gdbm file?

I am trying to learn more about ZSH and the way that my shell is setup and operates. I am running OSX and have installed ZSH with HomeBrew so as not to use my standard system ZSH. However, before running brew install zsh, I ran brew info zsh and found that there are two build options which are confusing to me. 1. --with-gdbm-support While I can find information about _what_ GDBM is, I can't seem to find any practical applications or any reasoning about _why_ I'd want to support it. 2. --with-pcre-support I'm familiar with what PCRE stands for, but I guess I'm left wondering, does ZSH use a different regexp engine without this option? So again, I'm wondering why I'd want to add PCRE support. Any explanation of what these options would get me and why I'd want to use them would be much appreciated.

So right now I'm going through my An Introduction to GCC book and I'm up to chapter 3 with gdbm. Now it wasn't there in the first place, and I've tried some "gdbm" "gdbm-devel" to get C gdbm on debian. The Beaglebone build of debian doesn't have it as default. I've looked through the repository and I'm struggling to find non-python related gdbm. What's the package manager command/how and where to build and install gdbm on debian.