grep两个文件（a.txt，b.txt） - b.txt中有多少行使用a.txt中的单词开始（或结束） - 输出：2个文件结果 [英] grep two files (a.txt, b.txt) - how many lines in b.txt starts (or ends) with the words from a.txt - output: 2 files with the results

问题描述

我知道我问太多，但也许你可以帮助这个问题。

a.txt包含字词，b.txt包含字符串。

我想知道来自b.txt的字符串结尾有来自a.txt的字符

示例：
a.txt

  apple 
 peach 
 potato 
  

b.txt

  greenapple 
 bigapple 
 rottenapple 
 pinkpeach 
 xxlpotatoxxx 
  

输出

  3 apple greenapple bigapple rottenapple 
 1 peach pinkpeach 
  pre> 
 
 
我想使用grep的解决方案，因为它的方式比awk更快。
 
 
 
你能请帮助我吗？ 
解决方案
这是一个 awk 解决方案
  awk'FNR == NR {a [$ 1] ++; next} {for（i in a）{if（$ 0〜i$） {b [i] ++; w [i] = w [i]？w [i] FS $ 0：$ 0}}} END {for（j in b）print b [j]，j，w [j] 'a.txt b.txt 
 3 apple greenapple bigapple rottenapple 
 1 peach pinkpeach 
  
使用 grep  
 
 
 
 
不会很简单或不可能它工作（它不是那么复杂）？
  awk'
 FNR == NR {＃文件（a.txt）
a [$ 1] ++＃将其存储在数组中a 
 next}＃跳转到下一个记录
 {＃为文件b.txt运行此零件
 for（i in a）{＃循环遍历数组中的所有数据a 
 if（$ 0〜i$）{＃b.txt在它的末尾有一些数组吗？ 
b [i] ++＃是，计数
w [i] = w [i]？w [i] FS $ 0：$ 0＃并存储它在数组中找到的记录w 
} 
} 
} 
 END {＃当两个文件都被读取时，END部分
用于（j in b）＃循环遍历数组b中的所有元素，
 print b [j]，j，w [j]}＃打印数组b，索引和数组w 
'a.txt b.txt＃读取两个文件
  
 
I know I ask too much, but maybe you can help with this problem too. 

a.txt contains words, b.txt contains strings. 

I would like to know how many string from b.txt ends with the words from a.txt

Example: 
a.txt
apple
peach
potato
b.txt
greenapple
bigapple
rottenapple
pinkpeach
xxlpotatoxxx
Output
3 apple greenapple bigapple rottenapple
1 peach pinkpeach
I would like to have a solution with grep, since it is way more faster than awk.

Can you guys please help  me? 
解决方案
Here is an awk solution
awk 'FNR==NR{a[$1]++;next} {for (i in a) {if ($0~i"$") {b[i]++;w[i]=w[i]?w[i] FS $0:$0}}} END {for (j in b) print b[j],j,w[j]}' a.txt b.txt
3 apple greenapple bigapple rottenapple
1 peach pinkpeach
It will not be simple or not possible at all to do this with grep 


How does it work (it's not so complicated)?
awk '
FNR==NR{                        # Run this part for first file (a.txt) only
  a[$1]++                       # Store it in an array a
  next}                         # Skip to next record
  {                             # Run this part for file b.txt
  for (i in a) {                # Loop trough all data in array a
    if ($0~i"$") {              # Does b.txt have some from array a at the end of it?
      b[i]++                    # Yes , count it
      w[i]=w[i]?w[i] FS $0:$0   # and store the record it found it in in array w
      }
    }
  } 
END {                           # When both file has been read do the END part
  for (j in b)                  # Loop trough all element in array b and
    print b[j],j,w[j]}          # Print array b, index and array w
  ' a.txt b.txt                 # Read the two files


                        
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