fw_printenv(8)

💖 fw_printenv — the U-Boot environment printer, bestie edition 💖

okay so this is a page from the System Manager's Manual, section 8 (that's the sysadmin/grown-up section, iykyk). it's called fw_printenv and she is literally the moment. let's get into it 🫶

✨ NAME ✨

fw_printenv — a whole tool for printing the environment for the bootloader U-Boot. that's it, that's the job, and she does it flawlessly 💅

🌸 SYNOPSIS 🌸

fw_printenv [ name ... ]

like. that's the whole vibe. you give her names, she gives you variables. simple as. ✨

🦋 DESCRIPTION 🦋

okay so fw_printenv is a simple tool — simple but never basic — for printing the environment for the bootloader U-Boot. 🎀

every environment variable that matches the names you handed her as arguments gets shown. yes, all of them that match, she's not gonna play favorites. 💖

if you call fw_printenv with no arguments at all, she prints the entire environment. the whole thing. no filter, no chill, full main character energy. 👑

now here's the tea, and it's important: this version of fw_printenv stems from libubootenv and does not hold a built-in default environment. nope. instead, the default environment is read from a file. so if you were expecting her to just know the defaults from birth — she doesn't, bestie, she reads them off a file like everyone else. 📄✨

💅 OPTIONS 💅

• -h — print a help message. she'll tell you what's up. 🫶
• -c, --config <filename> — the configuration file. this is the old fw_env.config. yes, the old one. respect her elders. 🎀
• -f, --defenv <filename> — the default environment, used if no one found. if nothing else shows up, this is the one who pulls through. 😭💖
• -V — print the program's version. gotta know which era of herself she's in. ✨
• -n, --no-header — do not print variable name. just the values, no labels, raw and unfiltered. 🙈

🌈 FILES 🌈

• /etc/fw_env.config — the configuration file for fw_printenv. this is the default value of the --config option, so if you don't say anything, this is where she looks. 📁💜
• /etc/u-boot-initial-env — the default U-Boot environment. this is the default value of the --defenv option. also her go-to when nobody specifies otherwise. 🌸

👑 SEE ALSO 👑

• fw_setenv(8) — her partner in crime, the one who writes. go say hi. 💫

ngl, if you're messing with U-Boot environments and you skipped this page, that's on you bestie. read the options. every single one. no cap. 🔥

and that's the whole page, periodt. 💖 this little icon was brought to you by the System Manager's Manual, dated 2021-06-23 — so yes, she's been serving looks since 2021 and she has not missed a single day. stay slay, go print an environment, mwah 🎀🦋✨