复刻（英语：fork，又译作派生、分支）是UNIX或类UNIX中的分叉函数，fork函数将运行着的程序分成2个（几乎）完全一样的进程，每个进程都启动一个从代码的同一位置开始执行的线程。这两个进程中的线程继续执行，就像是两个用户同时启动了该应用程序的两个副本。
从一个软件包拷贝了一份源代码然后在其上进行独立的开发，创建不同的软件。这个术语不只意味着版本控制上的分支，同时也意味着开发者社区的分割，是一种形式的分裂。
自由及开放源代码软件可以从原有开发团队复刻而不需要事先的许可，这也不会违反任何著作权法律。授权的专有软件（例如Unix）的复刻也时有发生。

fork，英语单词，名词、及物动词、不及物动词，作名词时意为“叉；餐叉；耙；(Fork)人名；(英、德)福克”，作及物动词时意为“叉起；使成叉状”，作不及物动词时意为“分叉；分歧”。

Fork - 2 Chainz
（What? What?）
You get that money out my pants last night?
（Nah I didn't get no money out your pants,
And quit yelling at me!）
Ain't nobody hollerin' at you!
I had a dream that rap wouldn't work
I woke up on the block
Had to hit it with the fork
Skrrr, skrrr, skrrr, skrrr, skrrr
Hit it with the fork
Skrrr, skrrr, skrrr, skrrr, skrrr
Hit it with the fork
Rap don't work, records ain't bein' sold
So much money on me, it won't even fold
So much money on me, it won't even fold
So much money on me, it won't even fold
So much money on me, it won't even fold
So much money on me, it won't even fold
I got Medusa on my sneakers
My dick up like "nice to meet ya"
100K for a feature, hundred K's at my leisure
Then we aim at your people
I be higher than a eagle
When I'm sipping on that codeine
I am ridin' on a jet, headin' to that Costa
Soon as I land I be in that Testarossa
If I die tonight, you gon' see some flicks in Ghosta
I'm the man in my city, same thing in South Dakota
Man I'm running up that check, show you how I do it
Man they tried to give me wings, but I already had some
I'm all that and then some
My trap house is my income, and it's booming!
I had a dream, rap wouldn't work
Woke up on the block
Hit it with the fork
Skrrr, skrrr, skrrr
Hit it with the fork
Skrrr, skrrr, skrrr
Hit it with the fork
Rap don't work, records ain't bein' sold
So much money on me, it won't even fold
So much money on me, it won't even fold
So much money on me,It won't even fold
I'm ballin' like Mr. Clean
I gotta keep my kitchen clean
God bless me like I'm finna sneeze
Got to weigh me on a triple beam
D-boy in parenthesis
All gold in my Mr. T's
2 Chainz, two pinky rings
My trigger finger's like a lemon squeeze
Climax! Make your main ho my side-chick
I'm so high, your whore get hijacked
And my vision is Pyrex
I do it big like a 5X
My first night, I spent five stacks
Next night I forgot to count
I'm so hot, who gon' put the fire out?
I'm the fireman, I put fire out
Got a pole in my basement
Tipped your girl like Malaya now
My wrist deserve a shout-out
I'm like "What up, wrist?"
My stove deserve a shout-out
I'm like "What up, stove?"
All this jewelry on then I'm out cold
So much money on me, it won't even fold!
I had a dream, rap wouldn't work
Woke up on the block
Hit it with the fork
Skrrr, skrrr, skrrr
Hit it with the fork
Skrrr, skrrr, skrrr
Hit it with the fork
Rap don't work, records ain't bein' sold
So much money on me, it won't even fold
So much money on me, it won't even fold
So much money on me, it won't even fold

fork是一部电影。