Both strace and ltrace are powerful command-line tools for debugging and troubleshooting programs on Linux: Strace captures and records all system calls made by a process as well as the signals ...

Debugging and profiling are critical skills in a developer's toolbox, especially when working with low-level system applications. Whether you're tracking down a segmentation fault in a C program or ...

I have noticed from experience that when my Linux programs fail, it's often a subtle event that can leave you confused or unsure of what actually went wrong. When I have fallen back to top, htop, or ...

Using Linux, especially as a server, often means dealing with new errors and resolving them. Most of them are easy to fix with just a web search. But some errors may require that you do some digging.

One of the nice things about Linux and similar operating systems is that you can investigate something to any level you wish. If a program has a problem you can decompile it, debug it, trace it, and — ...

Sandra Henry-Stocker was a programmer, Linux systems administrator, security engineer and Linux journalist for most of her 30-year career. She describes herself as "USL" (Unix as a second language) ...