< Shell练习题

2014-09-17shell练习题

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练习题

写一个shell脚本来看看你最喜欢敲的命令是哪个？然后列出你最喜欢敲的命令top10。

思路：我们要用到一个文件就是.bash_history，然后再去sort、uniq，剩下的就不用我多说了吧。很简单一个shell。

2014-09-16 21:32 举报评分

全部回复( 58 )

本帖最后由 butterfly梧桐雨于 2014-9-17 20:04 编辑

[root@myCentOS sbin]# cat ~/.bash_history | sort | uniq -c | sort -rn | head -n 10 | sed 's/[0-9]//g'
   ls
   ll
   bash check.sh
   vim check.sh
   ifconfig
   cd ..
   cd .ssh
   head .txt| awk '{print $NR}'
   fdisk -l
   exit

感觉不太完美，显示出来的结果，最后的那些行，是统计次数为个位数的，空格还在，所以没有对齐，感觉sed用得不太好，可是用awk，只会awk '{print $1}', 不知道怎么打印除了$1以外的列, 等待大家更好的答案

明白了，只要命令不需要命令的参数，所以只要第2列就可以了
[root@myCentOS ~]# cat ~/.bash_history | awk '{print $1}' | sort |uniq -c | sort -rn |head -n 10 |sed "$i"'p' -n | awk '{print $2}'
ls
head
cd
cat
ll
vim
grep
yum
bash
ifconfig

泡沫。

cat .bash_history|awk '{print $1}'|sort -n|uniq -c|sort -rn|head

wyatt88

本帖最后由 wyatt88 于 2014-9-16 23:31 编辑

#!/bin/bash
#ww
for i in `seq 1 10`
do
#echo $i
topi=`cat /root/.bash_history | awk '{print $1}' | sort |uniq -c | sort -rn |head -n 10 |sed "$i"'p' -n`
echo "top $i is `echo $topi | awk '{print $2}'` ","count: `echo $topi | awk '{print $1}'`"
done
结果：
top 1 is ls ,count: 99
top 2 is vim ,count: 60
top 3 is cd ,count: 54
top 4 is man ,count: 36
top 5 is sh ,count: 23
top 6 is date ,count: 21
top 7 is ifconfig ,count: 19
top 8 is df ,count: 15
top 9 is cat ,count: 15
top 10 is yum ,count: 14

阳光

cat ~/.bash_history | awk '{print $1}' | sort | uniq -c | sort -nr | head

学习了

dantes

cat .bash_history |sort -n |uniq -c |sort -rn |head -10

So Long

本帖最后由程城于 2014-9-17 02:05 编辑

#!/bin/bash
#written by chengcheng.
haha=`less ~/.bash_history |sort -n |uniq -c|sort -rn|head -10`
echo "$haha"
或者:
haha=`less ~/.bash_history |sort -n |uniq -c|sort -rn|head -10`
echo "$haha" | awk '{print $2}'

小雨

[root@localhost ~]# cat ~/.bash_history  | awk '{print $1}' | sort | uniq -c | sort -nr | head
147 ll
129 sh
102 vim
   96 sed
   86 cd
   71 cat
   63 grep
   49 ls
   32 rm
   23 echo

齐天大圣

awk '{print $1}' .bash_history |sort |uniq -c |sort -rn |head
164 cat
134 ls
97 vim
69 sh
56 ps
46 cd
27 awk
26 date
17 yum
17 ping

木字当头

我怎么还有显示中文
[root@centos33 shell]# cat /root/.bash_history |sort -n|uniq -c|sort -nr|head -10|awk '{ print $1,$2}'
68 ls
17 echo
8 ssh
7 cd
6 service
6 cd
5 openssl
5 getenforce
4 正在启动
4 vi

木字当头

cat /root/.bash_history |awk '{print $1}'|sed 's/[^a-z]//g'|sed '/^$/d'|sort -n|uniq -c|sort -nr|head
   78 ls
   72 cd
   26 cat
   25 service
   17 echo
   15 vi
   15 rootcentos
   14 yum
   13 make
   10 awk

ocean

cat $HOME/.bash_history |sort |uniq -c|sort -rn|head -10

nihao426181

cat .bash_history | sort -n |uniq -c |sort -n |head

jaws1689

本帖最后由 jaws1689 于 2014-9-17 20:08 编辑

cat /root/.bash_history |awk '{print $1}'|sort|uniq -c|sort -nr|head -10
125 sed
108 vim
   89 sh
   82 cat
   80 grep
   72 awk
   59 ls
   55 printf
   44 date
   44 cd

oszhang

cat .bash_history |awk '{print $1}' |sort -rn |uniq -c |head

chenzudao1234

cat .bash_history | sort | uniq -c | sort -rn | head
252 ls
109 cd ..
   49 cd bin
   27 cd logs
   25 vi catalina.out
   23 ./startup.sh
   23 ./shutdown.sh
   21 bash 1.sh
   19 vi 1.sh
   15 cd webapps

zyfeifie

cat .bash_history| awk '{sum[$1]++}END{for(i in sum) print sum,i}' | sort -nr | head
或者是
awk '{sum[$1]++}END{for(i in sum) print sum,i}' .bash_history | sort -nr | head
459 ls
198 cd
197 sudo
97 exit
63 ssh
54 ll
46 vim
46 ping
40 rm
37 svn

2014-09-17 17:14 评分分享

0

zyfeifie

赞同来自:

chenzudao1234 发表于 2014-9-17 16:44
cat .bash_history | sort | uniq -c | sort -rn | head
252 ls
109 cd ..

你这是经常重启tomcat的人啊，工作环境常用?

2014-09-17 17:17 评分分享


0

陌懒

赞同来自:

cat ~/.bash_history | awk '{print $1}' |sort | uniq -c |sort -rn|head

133 ll

   88 vi

   87 cd

   62 tail

   60 bash

   55 more

   38 sh

   32 service

   32 df

   30 ls

2014-09-17 17:20 评分分享


0

Louis

赞同来自:

#!/bin/bash

## This script is for list top 10 commands you have inputted in history.

## Written by Louis at 2014/09/17 17:45

awk '{print $1}' ~/.bash_history|sort|uniq -c|sort -nr|head

结果：

137 vim

123 ls

   96 bash

   74 df

   65 cat

   41 cd

   33 touch

   32 grep

   29 if

   27 find

2014-09-17 17:58 评分分享


0

游夜

赞同来自:

cat /root/.bash_history|awk '{print $1}'|sort|uniq -c|sort -nr|head

2014-09-17 20:47 评分分享


0

楓瀛夢鞢

赞同来自:

#! /bin/bash
home=`echo $HOME`
sort $home/.bash_history|uniq -c|sort -nr|head

2014-09-20 14:55 评分分享


0

larson

赞同来自:

cat /tmp/com_history | sort |uniq -c |sort -nr | head |sed 's/[0-9]//g'

2014-09-23 17:03 评分分享


0

lidunhuai

赞同来自:

awk '{print $1}' /root/.bash_history |sort |uniq -c |sort -n|tail -10

2014-11-05 16:17 评分分享


0

丁张龙

赞同来自:

#!/bin/bash
msg=`sort /root/.bash_history |uniq -c >/tmp/17.txt`
top=`sort -nr -k1 /tmp/17.txt |head|awk '{print $2}'`
echo "command top10 is $top"

2014-11-24 00:14 评分分享


0

丁张龙

赞同来自:

#/bin/bash
top=`cat /root/.bash_history |awk '{print $1}'|sort -n|uniq -c|sort -nr|head|awk '{print $2}'|cat -n`
echo "The top 10 usesul commond:"
echo "$top"
执行结果：
[root@arthur sbin]# sh top.sh
The top 10 usesul commond:
   1  vim
   2  ls
   3  head
   4  cd
   5  apachectl
   6  sh
   7  cat
   8  yum
   9  grep
10  ifconfig

2014-12-14 15:53 评分分享


0

zzfeng2012

赞同来自:

cat .bash_history | sort | uniq -c | sort -nr | head

2015-02-09 22:17 评分分享


0

qq20847697

赞同来自:

本帖最后由 qq20847697 于 2015-3-11 09:15 编辑

cat ~/.bash_history |awk '{print $1}'|sort|uniq -c|sort -nr|head

2015-03-11 09:12 评分分享


0

sss

赞同来自:

cat .bash_history | sort -n | uniq -c | sort -rn | head

2015-05-26 10:01 评分分享


0

cisco12355074

赞同来自:

脚本学习学习

2015-05-28 12:11 评分分享


0

llzdwyp

赞同来自:

history |awk -F' ' '{print $2}' |sort |uniq -c|sort -nr |awk 'NR<=10'

2015-07-28 12:13 评分分享


0

李昂

赞同来自:

history |awk '{print $2}' | uniq -c |sort -u -n

2015-08-06 14:57 评分分享


0

Armani

赞同来自:

1

2015-08-25 16:16 评分分享


0

Armani

赞同来自:

cat ~/.bash_history | awk '{print $1}' | sort | uniq -c | sort -nr | head -10 | awk '{print $2}

2015-08-25 16:21 评分分享


0

307141950

赞同来自:

cat .bash_history |sort -n |uniq -c |sort -n 怎么感觉越来越简单，了然无味!!

2015-09-04 10:14 评分分享


0

渐行渐远

赞同来自:

sort /root/.bash_history |uniq -c|sort -n

2015-09-18 11:20 评分分享


0

chenqi

赞同来自:

cat .bash_history |sort |uniq -c |sort -n |tail -n 10

2015-09-22 17:20 评分分享


0

翟厚翔

赞同来自:

cat .bash_history|sort -n|uniq -c|sort -n -r |head -10

2015-12-11 09:20 评分分享


0

蓝色风暴

赞同来自:

本帖最后由蓝色风暴于 2015-12-24 14:23 编辑

cat .bash_history | awk '{print $1}' | sort | uniq -c | sort -nt' ' -k1 | tail -10

2015-12-24 14:19 评分分享


0

hlymlv

赞同来自:

cat .bash_history|sort -n|uniq -c|sort -nr|head

2016-01-10 15:13 评分分享


0

lyhabc

赞同来自:

#!/bin/bash
cat /root/.bash_history |sort |uniq -c |sort -r|head

2016-02-02 11:25 评分分享


0

乐橙306

赞同来自:

[root@aliyun-63 309]# history  | awk  '{print $2}' |  sort  | uniq -c  |  sort  -nr |  head  -10
229 awk
115 cat
   81 sed
   81 ll
   45 find
   35 cd
   33 vi
   33 dstat
   32 date
   31 nmap
[root@aliyun-63 309]#

2016-03-09 15:52 评分分享


0

奇怪的蔬菜

赞同来自:

sort  ~/.bash_history |uniq -c|sort -k 1 -n

2016-03-21 19:41 评分分享


0

咸鱼吃Linux

赞同来自:

cat ~/.bash_history |awk  '{print $1}' |sort|uniq -c|sort -  rn |head -n 10 | awk '{print $2}'

2016-03-22 16:43 评分分享


0

gxp2008

赞同来自:

cat /root/.bash_history |sort -n|uniq -c|sort -n|awk '{print $2}'|sort -n|uniq -c|sort -nr|head -n 10

2016-03-24 11:06 评分分享


0

thankinglove

赞同来自:

cat ~/.bash_history | sort | uniq -c | sort -k1 -n -r | head

2016-04-20 14:44 评分分享


0

wangzai

赞同来自:

学习

2016-04-20 16:39 评分分享


0

阿杰

赞同来自:

123

2016-04-20 19:59 评分分享


0

jxcia2018

赞同来自:

sort ~/.bash_history |uniq -c |sort -nr|head -n10

2016-04-22 04:03 评分分享


0

Toornix

赞同来自:

cat .bash_history |sort -nr|uniq -c|sort -nr

2016-06-24 21:05 评分分享


0

kevinjin

赞同来自:

sort -n .bash_history |uniq -c |sort -nr |head -10

2016-07-31 14:57 评分分享


0

kevinjin

赞同来自:

木字当头发表于 2014-9-17 10:49
我怎么还有显示中文
[root@centos33 shell]# cat /root/.bash_history |sort -n|uniq -c|sort -nr|head -1 ...

你牛啊，兄弟，哈哈{:4_117:}

2016-07-31 14:58 评分分享


0

13650928714

赞同来自:

cat /root/.bash_history |sort |uniq -c |sort -nr |head

2016-07-31 16:14 评分分享


0

午夜DJ

赞同来自:

cat .bash_history |awk '{print $1}' |sort |uniq -c|sort -nr |head -n 10 |awk '{print $2}'

2016-08-06 16:18 评分分享


0

Bullet_Point

赞同来自:

1

2016-08-06 19:01 评分分享


0

hhao

赞同来自:

1

2016-08-08 22:39 评分分享


0

kw是id

赞同来自:

cat .bash_history |sort|uniq -c|sort -nr |head -n 10| awk '{print $2}'

2016-10-29 10:34 评分分享


0

nmzhaoliming

赞同来自:

cat .bash_history | sort -n |uniq -c |sort -rn | head -10 | awk -F " " '{$1=NR}{print}'

2016-11-28 18:40 评分分享


0

王斌

赞同来自:

这个题目有意思，好玩

cat ~/.bash_history | sort| uniq -c| sort -rn | head | awk '{print $2}'

2017-04-07 22:06 评分分享