关于滥用 cat(1) 命令的公告。请勿滥用 cat。
PSA about abuse of cat(1) command. Don't abuse cats

原始链接: https://www.abuseofcats.com

abuseofcats.com — 关于 cat(1) 的公益广告 ``` $ cat /etc/app/config | grep -v '^#' 滥用。这只 cat 没做错什么。 /\_/\ ( ;_; ) > ^ < $ grep -v '^#' /etc/app/config 人道。同样的输出，少了一个进程。 /\_/\ ( ^.^ ) > ^ < grep 可以自行打开文件。通过管道将单个文件传给 cat 只会衍生出一个毫无必要的进程，它的唯一工作就是将字节复制给一个本就知道如何读取这些字节的程序。 cat(1) 是用来连接（concatenate）文件的。让 cat 做它该做的事。其他处于危险中的猫： cat file | wc -l -> wc -l < file cat file | head -n 5 -> head -n 5 file cat file | awk '{print $1}' -> awk '{print $1}' file cat file | sort -> sort file 由 Scooter（又名 Jeremie King）制作 · feedback@jeremieking.com ```

抱歉。

abuseofcats.com — a public service announcement about cat(1)

$ cat /etc/app/config | grep -v '^#'

abuse. this cat did nothing wrong.

/\_/\ ( ;_; ) > ^ <

$ grep -v '^#' /etc/app/config

humane. same output, one less process.

/\_/\ ( ^.^ ) > ^ <

grep can open files by itself. Piping a single file through cat spawns an entire process whose only job is to copy bytes to a program that already knew how to read them.

cat(1) is for concatenating files. Let cat be cat.

other cats in danger:

cat file \| wc -l	wc -l < file
cat file \| head -n 5	head -n 5 file
cat file \| awk '{print $1}'	awk '{print $1}' file
cat file \| sort	sort file

关于滥用 cat(1) 命令的公告。请勿滥用 cat。 PSA about abuse of cat(1) command. Don't abuse cats

abuseofcats.com — a public service announcement about cat(1)

关于滥用 cat(1) 命令的公告。请勿滥用 cat。
PSA about abuse of cat(1) command. Don't abuse cats