Gzexe Help shell scripting encryption 01

Gzexe Help Shell Scripting Encryption onFirst, Introductionmany times our script will involve some private information, such as: User name, password, or other important information, we use some encryption to block this information, to ensure that

"Learning notes" Bash shell login, logoff, execution, etc.

Login: Bash executes/etc/profile first and then calls ~/.bash_profile. Cancellation: Bash calls ~/.bash_logout. Execute the new shell: In desktop management programs such as KDE,GNONE,ICEWM, execute terminal programs or perform

Number of shell statistic features

Today is too lazy, do not want a characteristic of a feature to statistics, and write a script#!/bin/bashdir_bas=$ (CD $ (dirname ${0});p wd) a= ' cat $dir _bas/feat ' feat_bas=$1total=0for B in $Ado echo $B Count= ' grep ' $B ' $feat _bas |

Shell Intranet Host Survival detector

Recently in the study of shell programming, idle to do nothing, to engage in a small shell. can be used to detect the surviving host of a network segment.1#!/bin/Bash2 #3#Date: the/ A/ -4#blog: www.cnblogs.com/Outline5 #by: Joe6 7 if[$#-lt1] ; Then8

Hadoop Learning for the fifth time: HDFs shell command

Tag:ar    use    sp    file    div   art    bs   ad   ef    The call file system (FS) shell command should use the form Bin/hadoop FS. All FS shell commands use the URI path as the parameter. The URI format is Scheme://authority/path. The scheme for

The find command in shell programming

The full syntax format for the Find command is as follows:find [path] [options] [tests] [actions] PathThe path section is easy to understand: You can use either an absolute path, such as/bin, or a relative path, such as. 。 You can also specify

Example of a simple function in a shell script

This script my_name shows how the arguments to the function are passed, and how the function returns a value of TRUE or false. Use a parameter to invoke the script, which is the name you want to use in the problem. Shell script

Understanding the Atime,mtime,ctime in the shell

All files have 3 time information, saved in the file system Atime (Access times)Is the last time the file was read or the time the file was executed Mtime (Modified times)Is the last time the file was written (it was changed when the file was

Common shell Command collation

1. View memory from large to small arrangementPS-E-O "%c:%p:%z:%a" |sort-k5-nrAnalysis:-E Display Process-O display by user-defined format%c CPU%p Parent Process ID%z Virtual Memory%aSort Order Command-k5 sorted by 5th column-nr comparing numbers

Linux really uses shell scripts to do timed mission critical nohup

There are a lot of articles on the Internet to teach you to use scheduled tasks, so other nonsense I will not say moreI here directly have sh to do timing, just a little people do not know, must use Nohup, otherwise the user exits terminal, SH task

Configuration of DHCP for shell scripts

Rpm-q DHCP &>/dev/nullIf [$?-ne 0]ThenYum-y Install DHCPecho "Ddns-update-style Interim;Ignore client-updates;Option Domain-name-servers 192.168.1.1;Default-lease-time 21600;Max-lease-time 43200;">/etc/dhcpd.confFiWhile TrueDoRead-p "Please input

Shell Date Command Collation

Recently found that the date command is especially useful (not in Mac)1. Get today's date[Email protected] ~]# date +%y%m%d201411232. Get the date of a day" 2014-11-12 " +%y%m%D20141112This seems like crap, but it's okay, keep looking.3. Get a day

Bird Book Shell learning Note (ii) shell-related expressions

Wildcard characters differ from regular expressions The wildcard is the syntax that bash native supports,A regular expression is a representation of a string, and regular expressions require supported tool support toLanguage settings: Export

Bash shell commands and monitoring that point (iii)

BASH shell command and monitor the DF and du of that point  The first two describes the bash Shell's process monitoring instructions, but sometimes you need to know how much disk space you have on a device. The DF command is introduced first:DF

Indirect references to variables in the shell

In the process of writing a shell script, it is believed that you will encounter this scenario:#!/bin/sh#log_1= "xxxxxx" log_2= "yyyyyy" log_3= "zzzzzz" for num in {1..3}do log=log_$num #此时你想把log_1, log_2,log_3, these three variables            The

Test NIC Traffic shell script

#!/bin/bashfunction Usage{echo "use./test_net.sh EthX Time"echo "Are You network interface"echo "The Last time!"echo "For example:./test_net.sh eth0 2"Exit}if [$#-lt 2-o $#-gt 2];thenusagefieth=$1time=$2old_inbw= ' cat/proc/net/dev | grep $eth | awk-

Shell script: Write data to disk in bulk

Shell script: Write data to disk in bulkFirst, about this articleThe monitoring system to be done requires monitoring the usage of disk space and alerting. When testing this feature, it is necessary to simulate two scenarios: one is the need to

Shell script Replacement Tomcat cluster War package

Make the server SSH-free before running.The configuration file does not have much change to overwrite the previous configurationProfile configuration fileBak=/home/wsm/bakWebapps=/home/wsm/webapps/wsmmeasurearry=192.168.68.29

--winlicense interface function of shell artifact

Winlicense provides the strongest and most scalable technology to enable developers to securely distribute trial and full versions of their software. The following is a description of the Winlicense interface function (Chinese) I. Application

[Shell Study Notes] curl command summary, shell Study Notes curl

[Shell Study Notes] curl command summary, shell Study Notes curlWen si haihui==============CURL command Summary1. DownloadCurl-o [file name] www.baidu.com2. Display HTTP request header informationCurl-I www.baidu.comShow HTTP response header

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