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Deuterium Wiki
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  • Linux
    • cmd
      • du: 显式文件大小
      • seq: 生成序列
      • cat: 连接
      • cp: 复制
      • cd: 切换目录
      • mv: 移动
    • awk
      • 执行awk脚本
      • 删除空行
      • 个数统计
      • 文件的交集
      • 文件的差集
    • mysql
      • 删除重复数据
      • 导出数据不带标题
  • Reading
    • Novel
      • 《基督山伯爵》人物关系
    • Awesome CS Books
      • csapp-3e-homework-solution
        • 1. A Tour of Computer Systems
        • 2. Representing and Manipulating Information
          • 2.55 Compile and Run
          • 2.56 Another Try
          • 2.57 More show Procedures
          • 2.58 Check Little-Endian
          • 2.59 Bit Expressions
          • 2.60 Replace Byte
          • 2.61 More Bit Expressions
          • 2.62 Check Arithmetic Right Shift
          • 2.63 Logic & Arithmetic Right Shift
          • 2.64 Any Odd One
          • 2.65 Odd Ones
          • 2.66 Leftmost One
          • 2.67 Int Size is 32
          • 2.68 Lower One Mask
          • 2.69 Rotate Left
          • 2.70 Fits Bits
          • 2.71 Xbyte
          • 2.72 Copy Int
          • 2.73 Saturating Add
          • 2.74 Sub OK
          • 2.75 Unsigned High Prod
          • 2.76 calloc
          • 2.77 Multiple By Shifts
          • 2.78 Divide Power 2
          • 2.79 Mul3div4
          • 2.80 Three Fourths
          • 2.81 Generate Bits
          • 2.82 Signed and Unsigned
          • 2.83 Binary Floating Value
          • 2.84 Float Le
          • 2.85 Floating Point I
          • 2.86 Extend Precision
          • 2.87 Floating-Point II
          • 2.88 Floating-Point III
          • 2.89 Floating-Point IV
          • 2.90 fpwr2
          • 2.91 π
          • 2.92 Float Negate
          • 2.93 Float Absval
          • 2.94 Float Twice
          • 2.95 Float Half
          • 2.96 Float f2i
          • 2.97 Float i2f
        • 3. Machine-Level Representation of Programs
          • 3.58 Decode
          • 3.59 128-bit Multiply
          • 3.60 For Loop
          • 3.61 Conditional Data Transfer
          • 3.62 Switch I
          • 3.63 Switch II
          • 3.64 Multiple Dimension Array I
          • 3.65 Multiple Dimension Array II
          • 3.66 Multiple Dimension Array III
          • 3.67 Caller and Callee
          • 3.68 Alignment
          • 3.69 Struct
          • 3.70 Union
          • 3.71 fgets
          • 3.72 Variable-Size Stack
          • 3.73 Find Range I
          • 3.74 Find Range II
          • 3.75 Complex
      • tcpv1
        • ch01: Introduction
        • ch02: Link Layer
        • ch03: Internet Protocol
        • ch04: Address Resolutin Protocol
        • ch05: Reverse Address Resolution Protocol
        • ch06: Internet Control Message Protocol
        • ch07: Ping Program
        • ch08: Traceroute Program
        • ch09: IP Routing
        • ch10: Dynamic Routing Protocols
        • ch11: User Datagram Protocol
        • ch12: Broadcasting and Multicasting
        • ch13: Internet Group Management Protocol
        • ch14: The Domain Name System
        • ch15: Trivial File Transfer Protocol
        • ch16: Boostrap Protocol
        • ch17: Transmission Control Protocol
        • ch18: TCP Connection Establishment and Termination
        • ch 19: TCP Interactive Data Flow
        • ch20: TCP Bulk Data Flow
      • http
        • ch01: Overview of HTTP
        • ch02: URLs and Resources
        • ch03: HTTP Messages
        • ch04: Connection Management
        • ch05: Web Servers
        • ch06: Proxies
        • ch07: Caching
        • ch08: Integration Points
        • ch09: Web Robots
        • ch10: HTTP-NG
        • ch11: Client Identification and Cookies
        • ch12: Basic Authentication
        • ch13: Digest Authentication
        • ch14: Secure HTTP
        • ch15: Entities and Encodings
        • ch16: Internationalizated
        • ch17: Content Negotiation and Transcoding
        • ch18: Web Hosting
        • ch19: Publishing Systems
        • ch20: Redirections and Load Balancing
        • ch21: Logging and Usage Tracking
    • 提升认知
      • 《为什么需要生物学思维》
      • 《大话西方艺术史》
  • Mathematics
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  1. Linux
  2. awk

文件的交集

使用awk找出两个文件中所有都有的行。

文件1:

file1
034J
025J-01
045k
089G-02
04J01

文件2:

file2
04J01
025J-01
038L-02

找出这两个文件都有的行:

awk 'NR == FNR { lines[$0] = 1; next } lines[$0] ' file1 file2

结果:

04J01
025J-01

将脚本保存在一个文件中:

file_intersaction.awk
#! /usr/bin/awk -f
NR == FNR { lines[$0]=1; next } $0 in lines
Previous个数统计Next文件的差集

Last updated 4 years ago

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