用shell处理以下内容
1、按单词出现频率降序排序!
2、按字母出现频率降序排序!
the squid project provides a number ofresources to assist users design,implement and support squid installations.Please browse the documentation and support sections for more infomation,byoldboy training.
课堂实战考察某企业shell面试考试题
http://oldboy.blog.51cto.com/2561410/1686891
解答:
[[email protected] scripts]# cat paixu.txt|xargs -n1|awk ‘{aa[$1]++} END{for (i in aa) print i,aa[i]}‘|sort -rnk2support 2squid 2and 2users 1
[[email protected] scripts]# egrep -o "[a-z]" paixu.txt|awk ‘{aa[$1]++} END{for (j in aa) print j,aa[j]}‘|sort -rnk2 s 19 e 17 o 16 t 14 n 12 i 12 r 11
时间: 2024-11-29 09:43:37