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Use source, dot (.) in Linux (.) use source, dot (.) when the shell script is executed, no sub-processes are generated. The shell script runs in the current shell,After the shell script
Tags: tutorial else use the ted while command to get through the systemThe following features are required for this article: a folder that has a folder that is named by a numeric number requires the deletion of files other than the maximum encoding.Specific implementationGeneral idea: Loop through all the files in the folder, match the maximum encoding file, and then loop the file to delete the
In linux, the shell script executes the jar file,
Recently, I am working on a shell script to start the jar file and close the jar file. It hurts me. Finally finished this evening.
In o
/useradd,/usr/sbin/userdel 2, using sudo authorization command with password $ sudo/usr/ Sbin/useradd user5$ sudo/usr/sbin/userdel-r User5 3, using the password-free sudo authorization command (use scenario: Enter a command in the script) $ sudo/usr/sbin/useradd user6$ sudo /usr/sbin/userdel-r user6 setup form: User5 all=nopasswd:/usr/sbin/useradd,/usr/sbin/userdelsudo all=nopasswd:/usr/sbin/ Userdel-r User4 III,
Two Methods for referencing and calling another script file in Shell scripts
This article mainly introduces two methods to reference and call another script file in Shell scripts. This article introduces the syntax of the two meth
Words do not say, start on the code, in order to lazy, the code is just a screenshot, interested friends can read after their own write, so deepen the impression.
Above is the shell script written by the younger brother. Please forgive me for not writing well.
First encountered the first pit
I wrote in the window and then the road Linux implementation, in Linux anyway said my 19 lines have errors,
When executing a pre-existing shell script file under a Linux system, it prompts you that the file does not exist.
The general reason for this is that your shell script is written in a system that is inconsistent with your execut
{print 'Next, I will make this date into this format, 2016/03/04-f is a delimiter, can also be written in the command to write fs= "-", but must have a begin# Stat hehe.log | awk ' Nr==6{print $ ' | awk-f-' {print $ '/' $ '/' $ '# stat Hehe.log | awk ' Nr==6{print ' | awk ' begin{fs= '-"}{print $"/"$ $"/"$ $"Given this date, the shell script will naturally come out:1#/bin/Bash2 3 for
Today found a system to detect the integrity of the shell script, I tried it can be, introduced to everyone.System: CentOS 5.xScript content:
Copy Code code as follows:
Cat my_filecheck.sh
#!/bin/bash
#
# variable first declared to use
Shopt-s-O Nounset
# statement
# Build Date
date=$ (date + '%y%m%d%h%m%s ')
# Join the approved directory #
Dirs= "/bin/sbin/usr/bin/usr/sbin/lib
Shell script for file traversal and Deletion
The functions to be implemented in this article are as follows: a folder has a folder named by number, and files except the maximum encoding need to be deleted.Implementation
General idea: traverse all files in the folder cyclically, and obtain the maximum encoding file by r
Iredmail is a set of postfix-Core integrated messaging system installation scripts that can be used to quickly deploy mail servers.
After a series of analyses above, enter the steps to obtain the installation package, the author wrote a separate script here, get_all.sh, we continue to analyze this script
_rootdir= "$ (PWD)"Conf_dir= "${_rootdir}/. /conf "
. ${conf_dir}/global. ${conf_dir}/core. ${conf_di
Tags: Java DB2 shell ExportThis article calls the shell script through Java code and passes in the parameter implementation DB2 the database table exports to the file, the code is as follows:importjava.io.file;importjava.io.ioexception;importjava.io.inputstreamreader;import java.io.linenumberreader;importjava.util.hash
Not long ago, once searched a blog is to read the configuration file, http://www.cnblogs.com/bo083/archive/2012/11/19/2777076.html, used to now, feel very convenient, thank the author.Now, a web interface is required to allow the user to modify a similar configuration file, the big way is to call the Linux shell script
Linux bulk Modify file Character Set shell script requirements: need to "/home/zichen/dxzs0305" directory all PHP file character set by UTF-8Convert to GB2312 www.2cto.com shell script content: [html] #! /Bin/bash-x SUBFIX = "php"
When writing a shell script, it often involves manipulating files, such as reading a row of data from a file, appending a row of data to a file, and so on. There are a number of ways to complete file read and write operations, understanding the execution of
In this case, it is usually a shell script written under window and copied to the Linux machine for execution to occur.The reason is:The end of each line under Windows is \n\r, and the end of the file under Linux is \ nThis allows window to write an edited shell script when
Execute the system command and write the shell script that writes the output to the log file,
This is probably the requirement. Run the usysfault command on the aix system to retrieve the fault light information. However, it seems that only the root user can execute this command. If other users execute this command, an error is reported. I tried every means to g
Tags: style blog http color io os java ar fileThe shell script is used to export the DB2 database table to a file, and in another blog post, Java code calls the shell script and passes in the parameter implementation DB2 database table export to a
useradd testadd, Adding a new user in SR mode
Create a password sudo(you can ensure that a password is used by the user before using this command)
EditVisudo: run visudo, vim editor edit add Span style= "FONT-FAMILY:CALIBRI; font-size:11.0pt; "lang=" en-us "> SR LOCALHOST=/USR /sbin/useraddsr add Super permissions for Add users
Switch to SR user
sudo useradd testadd, the system will pop up a command prompt, after verifying the command SR can successfully add users
In the Linux production environment, there are the following such a common operations need to work.Every once in a while, such as two hours, the log file to generate the log per second (this is assumed to be testfile.out, the absolute path is/home/panlm/shellpra/ Testfile.out) is an operation that prints the lines of the log containing certain strings separately and puts them back in a file (where the
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