It's a pun on PC LOAD LETTER, which is an old error message roughly meaning "load letter paper into the paper cartridge". The other person thought you replied to the other² person.

[–] chatokun@lemmy.dbzer0.com 26 points 10 months ago (1 children)

The comment is also a reference.

[–] PipedLinkBot@feddit.rocks 4 points 10 months ago

Here is an alternative Piped link(s):

reference

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[–] mypasswordis1234@lemmy.world 13 points 10 months ago* (last edited 10 months ago) (1 children)

cat is the program that reads the contents of specific file

litter is the file

> means forward the output of the program to the file

/dev/lp0 is Line Printer 0 so just printer

[–] Vilian@lemmy.ca 1 points 10 months ago (1 children)

your name is fitting

[–] mypasswordis1234@lemmy.world 1 points 10 months ago

what-

[–] don@lemm.ee 1 points 10 months ago

⠀

[–] uis@lemmy.world 19 points 10 months ago

cat litter > /dev/lp0