binfmtf(1)

✨ binfmtf — the manual, but make it cute ✨

okay bestie, so this is binfmtf(1), and it lives in the binfmt_C manual family. It's a little interpreter script that makes Fortran source files go brrr like they're executables. Let's get into it 💅

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🌸 NAME 🌸

binfmtf-interpreter — the binfmt_misc handler for fortran. That's it, that's the whole job description 🎀

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🦋 SYNOPSIS 🦋

binfmtf-interpreter fortran-source-file-name [command-line opions ...]

(yes, opions — that's literally how it's spelled in here, and I'm not about to gaslight the manpage 😭)

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💖 DESCRIPTION 💖

So here's the tea, bestie: binfmtf95-interpreter takes a fortran source file that you name on the command-line, compiles it with the gfortran compiler, and then runs the resulting file. Compile → run → slay ✨

It's built to be a handler for the binfmt_misc handler, which is that Linux system for treating arbitrary files as executables. Like, you write a fortran file, the kernel sees it, and it just knows what to do. main character energy fr fr 👑

And the command-line options? Those get passed on through to the compiled binary. Not swallowed, not ignored — handed straight over. Obsessed 🫶

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🔥 FILE MAGIC 🔥

Important vibe check: Fortran source files have to have the magic characters

! BINFMTF95:

at the very beginning of the file. That's the requirement, no cap. If your file doesn't start with that, the magic is not magicking 💀

And here's the cute part — that same line is also used to specify the additional command-line options for the Fortran compiler. One line doing double duty. Iconic.

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🧚 ENVIRONMENT 🧚

• GFORTRAN — the compiler that gets used. The default is to use gfortran 🌈
• BINFMTCTMPDIR — temporary directory used for the binary and for execution.

Falls back to $TMPDIR, then $TEMPDIR, then /tmp. A whole lil chain of backups, we love a prepared queen 💜

• BINFMTC_DEBUG — enables debug output if it's set. Set it and suddenly everything is loud 📢
• BINFMTC_GFORTRAN_OPTS — extra gfortran options. Pro tip from the page itself: use BINFMTC_DEBUG to verify the options actually being passed on to gfortran.

The default is -O2 -Wall ⭐

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👑 AUTHOR 👑

Junichi Uekawa (dancer@debian.org)

Upstream page is available at http://www.netfort.gr.jp/~dancer/software/ — go say hi 🫶

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💫 SEE ALSO 💫

• binfmtasm-interpreter(1)
• binfmtc-interpreter(1)
• binfmtcxx-interpreter(1)
• binfmtf-interpreter(1)
• binfmtgcj-interpreter(1)

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and that's the whole page, bestie!! this lil cutie is from the binfmt_misc corner of the world, written by Dancer, dated 2005 Jun 4, and it's filed under binfmtf(1). 2005 called, and honestly? it ate 💅✨