腾讯一shell试题.

腾讯一shell试题.

假设qq.tel文件内容:

12334:13510014336

12345:12334555666

12334:12343453453

12099:13598989899

12334:12345454545

12099:12343454544

分类如下:

[12334]

13510014336

12343453453

...........

[12099]

13598989899

12343454544

............

实现如下:

sort  qq.tel| awk  -F':'   '{if(tmp!=$1)   {tmp=$1;print "["tmp"]";}  print $2;}'  #tmp可以换成其他字符           判断tmp是否不等于   不等于就把$1赋值给tmp      打印tmp的值"tmp“   打印$2

sort 11.txt |awk '{if(tmp!=$1){tmp=$1;print "["tmp"]"}print $2}'

找出两个文件中一样的qq号

1 #!/bin/bash
  2 for string1 in `cat a.txt`;do
  3     for string2 in `cat b.txt`;do
  4         if [ "$string1" == "$string2" ];then
  5             echo $string1
  6         fi
  7     done
  8 done