lsof VS D (Programming Language)

Compare lsof VS D (Programming Language) and see what are their differences

Rating: 0 reviews

Rating: 0 reviews
Pricing: Open source

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Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, D (Programming Language) seems to be more popular. It has been mentioned 60 times since March 2021.

social mentions: 0 vs 60
Command Line Tools popularity: 100% vs 0%
alternatives listed: 22 vs 86

Base details

Website, pricing, platforms and company facts side by side.

	l lsof	D (Programming Language)
Website	people.freebsd.org	dlang.org
Pricing	—	Open source
Listed in	Monitoring Tools Command Line Tools Performance Monitoring Accounting +1	Programming Language OOP Generic Programming Language Dynamic Programming Language +1

Features and specs

What each product offers, as listed by its team.

lsof 0 features

D (Programming Language) 6 features

No features have been listed yet.

Performance
D is designed to be a high-performance systems programming language, offering performance comparable to C and C++ through native machine code compilation.
Expressiveness
D features a rich standard library and modern language constructs, such as garbage collection, first-class arrays, and advanced templating, making it easier to write expressive and maintainable code.
Memory Safety
D offers optional garbage collection along with manual memory management. This hybrid approach can help in developing safer applications by reducing memory-related errors.
Interoperability
D can easily interoperate with C API, enabling seamless integration with existing C libraries and systems. It also supports better C++ interoperability compared to other languages.
Built-in Unit Testing
D has built-in support for unit tests, allowing developers to write and run tests as part of the language itself, facilitating test-driven development.
Concurrency
D offers built-in concurrency support with message passing, similar to the actor model found in languages like Erlang, making it easier to write concurrent and parallel programs.

Possible disadvantages

Adoption
D is not as widely adopted as other languages like C, C++, or Java. This limited adoption means fewer libraries, frameworks, and community support.
Toolchain Maturity
While D's compilers and tools have improved over the years, they may still lack the maturity and feature set of more established languages, which can affect developer productivity.
Learning Curve
D's richness and combination of paradigms (such as imperative, object-oriented, and functional programming) can present a steep learning curve for new developers.
Garbage Collection
Although D offers optional garbage collection, its reliance on it for memory safety might be seen as a drawback for real-time system development where deterministic memory management is crucial.
Ecosystem
The ecosystem for D is less vibrant compared to more popular languages, leading to potentially fewer third-party libraries, tools, and resources.
Standard Library Documentation
The standard library documentation can be inconsistent or less comprehensive compared to other languages, making it difficult for developers to fully utilize all features of the language.

Analysis

An editorial look at what each product does well and who it suits.

lsof

D (Programming Language)

Overall verdict

lsof (List Open Files) is a mature, battle-tested Unix/Linux utility that reliably reveals which files, sockets, and resources are opened by processes, making it an indispensable diagnostic tool for system administrators and developers.

Why this product is good

Provides comprehensive visibility into open files, network sockets, pipes, and devices tied to running processes
Extremely useful for troubleshooting 'device busy' errors, port conflicts, and locating processes holding onto deleted files
Highly portable across many Unix-like systems including FreeBSD, Linux, macOS, and Solaris
Long history of stable, well-maintained releases with extensive documentation and community support
Powerful filtering options let you query by user, process, port, file, or network connection

Recommended for

System administrators diagnosing resource and file-locking issues
Developers debugging network connections and socket usage
Security professionals investigating suspicious process activity and open network ports
Anyone needing to identify which process is using a specific file, directory, or port before unmounting or killing

Overall verdict

Overall, D is a solid programming language choice that balances performance with productivity. It may not be as widely adopted as some other languages, but it has a dedicated community and continues to evolve, making it a viable option for various programming tasks.

Why this product is good

The D programming language is considered good by many developers for various reasons. It combines the performance and low-level control of C/C++ with the expressive power and ease of use found in modern languages. D offers features like garbage collection, first-class functions, and compile-time function execution, providing both speed and flexibility. Its interoperability with C, the convenience of a powerful standard library (Phobos), and the availability of packages via the DUB package manager make it a practical choice for systems programming, application development, and rapid prototyping.

Recommended for

System programming enthusiasts looking for an alternative to C/C++
Developers interested in writing high-performance applications
Programmers who appreciate modern language features and strong community support
Projects requiring seamless C integration
Individuals looking for a language that supports easy code maintenance and scalability

Videos

Walkthroughs and reviews on video.

lsof 2 videos + Add

D (Programming Language) 1 video + Add

8 Basic lsof Commands Every Sysadmin Needs to Know

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100

lsof

D (Programming Language)

100% 100%

Command Line Tools

0% 0%

Programming Language

100% 100%

Performance Monitoring

0% 0%

OOP

100% 100%

User comments

Share your experience with using lsof and D (Programming Language). For example, how are they different and which one is better?

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

lsof 0 mentions

D (Programming Language) 60 mentions

Tracking lsof since Mar 2021.

Ask HN: What is your (AI) dev tech stack / workflow? (June 2026)
I've spent 2 weeks (2-4h per day) to make D language[1] version of Sciter SDK [2] Choice of AI "tooling" was by accident - typed something like "how to define copy constructor in D for custom structure" in Microsoft's Copilot in Edge... - Source: Hacker News / 4 months ago
Rue: Higher level than Rust, lower level than Go
> Mostly, I am not really trying to compete with C/C++/Rust on speed, but I'm not going to add a GC either. So I'm somewhere in there. Out of curiosity, how would you compare the goals of Rue with something like D[0] or one of the... - Source: Hacker News / 9 months ago
Pony: An actor-model, capabilities-secure, high-performance programming language
The D language home page has something similar with a drop down with code examples https://dlang.org/. - Source: Hacker News / about 1 year ago

Alternatives to lsof and D (Programming Language)

When comparing lsof and D (Programming Language), you can also consider the following products.

htop
htop - an interactive process viewer for Unix. This is htop, an interactive process viewer for Unix systems. It is a text-mode application (for console or X terminals) and requires ncurses. Latest release: htop 2.

Compare htop to lsof or D (Programming Language):

htop vs lsof htop vs D (Programming Language)
C++
Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation

Compare C++ to lsof or D (Programming Language):

C++ vs lsof C++ vs D (Programming Language)
Sysdig
Sysdig is an open source, system-level exploration that capture system state and activity from a running Linux instance, then save, filter and analyze.

Compare Sysdig to lsof or D (Programming Language):

Sysdig vs lsof Sysdig vs D (Programming Language)
Nim (programming language)
The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.

Compare Nim (programming language) to lsof or D (Programming Language):

Nim (programming language) vs lsof Nim (programming language) vs D (Programming Language)
v

vtop
vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage.

Compare vtop to lsof or D (Programming Language):

vtop vs lsof vtop vs D (Programming Language)
V (programming language)
Simple, fast, safe, compiled language for developing maintainable software.

Compare V (programming language) to lsof or D (Programming Language):

V (programming language) vs lsof V (programming language) vs D (Programming Language)