(ext.) 2017 the shell of the newest enterprise face Test (I, II)

2017 the latest enterprise face Test shell (i)

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Enterprise Shell face question 1: Batch generate random character file name case *

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Use the For loop to bulk create 10 HTML files in the/oldboy directory, where each file needs to contain 10 random lowercase characters plus a fixed string oldboy, with the following name examples:

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[[email protected] C19]# ls /oldboyapquvdpqbk_oldboy.html  mpyogpsmwj_oldboy.html  txynzwofgg_oldboy.htmlbmqiwhfpgv_oldboy.html  mtrzobsprf_oldboy.html  vjxmlflawa_oldboy.htmljhjdcjnjxc_oldboy.html  qeztkkmewn_oldboy.htmljpvirsnjld_oldboy.html  ruscyxwxai_oldboy.html

Answer:

The script reads as follows: (For loop implementation script)

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#!/bin/bash#date=2017-8-3cd /oldboyfor(( i=0;i<10;i++ ))do   r=` head-c 500 /dev/urandom|tr-dc[a-z]|head-c 10|sed-r ‘s#[^a-z]#m#g‘`   touch"$r"_oldboy.htmldone

Description

The script execution results are as follows:

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[[email protected] oldboy]# ll总用量 8-rw-r--r-- 1 root root   0 8月   3 13:35 defozmpplm_oldboy.html-rw-r--r-- 1 root root 175 8月   3 13:35 for.sh-rw-r--r-- 1 root root   0 8月   3 13:35 fpwxukgqho_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:35 gwtwtmdwaf_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:35 htttummyjh_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:35 myqmgyixuj_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:35 rmsyxakjbx_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:35 sxarorojil_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:35 wfqaymdmxc_oldboy.html-rw-r--r-- 1 root root 184 8月   3 13:32 while.sh-rw-r--r-- 1 root root   0 8月   3 13:35 yvgviwswze_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:35 zhikoyxipv_oldboy.html

The script reads as follows: (While loop implementation script)

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#!/bin/bash#date=2017-8-3cd/oldboyi=0while(( i<10 ))do   r=` head-c 500 /dev/urandom|tr-dc[a-z]|head-c 10|sed-r ‘s#[^a-z]#m#g‘`   touch"$r"_oldboy.html   ((i++))done

Description

The script execution results are as follows:

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[[email protected] oldboy]# ll总用量 4-rw-r--r-- 1 root root   0 8月   3 13:28 atncjmfwtd_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 bmbhdhvqmb_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 bmuqvcehgc_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 irfrxjjmny_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 mvprsmwvah_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 nxyfjkvekl_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 omqyxuykgq_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 smkxwfjepd_oldboy.html-rw-r--r-- 1 root root 184 8月   3 13:28 while.sh-rw-r--r-- 1 root root   0 8月   3 13:28 wkwmkktdcn_oldboy.html-rw-r--r-- 1 root root   0 8月   3 13:28 xtznpcuxem_oldboy.html

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Enterprise Shell face question 2: Batch renaming special case *

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The Oldboy string in the result file name in question 1 above will be changed to oldgirl (preferably with a For loop), and the extension HTML will all be changed to uppercase.

Answer:

The For Loop implementation script is as follows:

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#!/bin/bash#date=2017-8-3cd/oldboyfori in`ls|grep.*html`do  mv $i  `echo$i|sed-r ‘s#(.*)_oldboy.html#\1_oldgirl.HTML#‘`done

Description

The script execution results are as follows:

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[[email protected] oldboy]# sh for2.shahqrvgmewi_oldgirl.HTMLcekphjpxmf_oldgirl.HTMLfodvkohejd_oldgirl.HTMLllymsvwhim_oldgirl.HTMLmejlzbfmna_oldgirl.HTMLmxqrnbgmnt_oldgirl.HTMLpkviyuhrum_oldgirl.HTMLshmmlxzkdu_oldgirl.HTMLwmgokfirna_oldgirl.HTMLwmmknomcmy_oldgirl.HTML

Other methods reference:http://wutengfei.blog.51cto.com/10942117/1951146

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Enterprise Shell face question 3: Batch Create special requirements user Stories *

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Batch Create 10 System account OLDBOY01-OLDBOY10 and set the password (password is random number, require characters and numbers and so on mixed).

Without a For loop implementation idea: http://user.qzone.qq.com/49000448/blog/1422183723

Answer:

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#!/bin/bash #date =2018-8-3 for  i  in   ' seq  -w 1 10 ' Do     useradd  < Code class= "Bash plain" >oldboy$i -m     echo   Code class= "Bash plain" >| passwd   --stdin oldboy$i Code class= "Bash keyword" >done

Description

2017 the latest enterprise face Test Shell (ii)

Exercise 1: write a shell script that lists the IP of the 192.169.5.0/24 network segment online. (Locate the active IP)

Requirements are as follows:

1. The online IP and the online IP are placed in two files respectively to facilitate later inspection;

2. Do not affect the operation of the current terminal;

3. After the script has finished running, give the message that the script has finished running.

The script reads as follows:

Method One:

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#!/bin/bash[ -f /etc/init.d/functions] && . /etc/init.d/functions||exit1# 验证系统函数文件是否存在，如存在则调用系统函数，否则退出！ips="192.169.5."fori in$(seq254)doping-c 2 $ips$i >/dev/null 2>/dev/nullif[ "$?"== "0"]then        echo"echo $ips$i is online">>/root/ip_online.txtelse        echo"echo $ips$i is not online">>/root/ip_noline.txtfidoneif[ "$ips$i"!= "192.169.5.255"];then        action "shell脚本执行完毕！"/bin/truefi

Method Two:

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#!/bin/bash[ -f /etc/init.d/functions] && . /etc/init.d/functions||exit1 # 验证系统函数文件是否存在，如存在则调用系统函数，否则退出！forip in$(cat/root/ip.txt)doping-c 2 $ip >/dev/null2>/dev/nullif [ "$?"== "0"]then        echo"echo $ip is online">>/root/ip_online.txtelse        echo "echo $ip is not online">>/root/ip_noline.txtfidoneif[ "$ip"!= "192.169.5.255"];then        action "shell脚本执行完毕！"/bin/truefi

Description

(1) If the script name ip_online.sh, execute the script without affecting the use of the current terminal, using the SH ip_online.sh & command.

(2) It is not recommended to use method two because editing a/root/ip.txt file is a waste of time.

This article is from the "Hand of the Paladin Control" blog, please make sure to keep this source http://wutengfei.blog.51cto.com/10942117/1961226

(ext.) 2017 the shell of the newest enterprise face Test (I, II)