First, compile bash to implement the syslog logging function of Bash 1. This paper will realize the function of history record to syslog log through bash software, and it can be transferred to the remote log centralized server in real-time, which can realize the audit function of operation logs.Operating system version
Bash is arguably the most widely used shell in the *nix world, and one of its characteristics is the historical command (history) mechanism. This mechanism is mainly used for the convenience of the user-less knocking on the keyboard, improve work efficiency. However, it is widely discussed that bash_history can be used as a logging mechanism to monitor user activity. This article will discuss the above ques
In Bash, we can use the history command to review, modify, and reuse previous historical commands. Remove the signal mechanism, remove the job control, and remove various parameter calls. Today, we only want to see how to record commands in Bash and how to store historical commands.
In Bash, we can use the
) 'red': cat/etc/redhat-release[Note: Press enter when you see your command, which will execute the command from the history]# Cat/etc/redhat-releaseFedora release 9 (Sulphur)Repeat the previous commandYou can run the previous command again in four ways:Use the up arrow key and press enter to execute.Press !! And press enter to execute.Enter! -1 and press enter to execute.Press Ctrl + P and press Enter.Execute a specified command from the command hist
Before giving you a detailed introduction to the Linux Bash command, let's first understand the Bash command, and then give a comprehensive introduction to the Linux Bash command, hoping to be useful to you. You can edit events in the historical event list on the command line. Table 10-3 lists the operations performed to query the historical event list.
Table 10-
Bash is a Unix shell written for the GNU program. Its name is a series of abbreviations: Bourne-Again SHell-this is a puntion about the Bourne shell (sh) (Bourne again/born again)
Complete bash History Review
1. Download the bash-4.2 source code package and modify the source code to re-compile and install it:
Wget http
Perfect Bash History Audit
1. Download the bash-4.2 version source package, modify the source code to recompile the installation:
wget http://mirrors.ustc.edu.cn/gnu/bash/bash-4.2.tar.gz
2. Modify the Config-top.h file in the root directory of the source package.
#define
1, Bash effect Introduction:1. Command history2, Pipeline, redirect3. Command aliases4. Command line editing5. Command line expansion6. File name Wildcard7. Variables8. Programming2. Command line editing: cursor Jump:CTRL + A: Skip to the beginning of the commandCtrl+e: Jump to the end of the command lineCtrl+u: Delete the cursor to the beginning of the command lineCTRL+K: Delete the cursor to the end of the command lineCtrl+l: Clear Screen3. Comma
# # # Bash in the History command in the Shell----------In daily operations, we often use the history command to check the historical commands executed on this machine, or at what time the commands are executed. The history command does not show the time by default and we can set it.-----------Displays the commands tha
In daily work, the ability to use commands quickly and accurately is essential, so let's introduce some of the tips below.First, find the command history--historyUse history to quickly find the commands you've entered before.# HistoryAs you can see, the commands you have entered appear in the list. What's the use of the command number in front? See below for a detailed explanation.Additional options:#
Bash displays the execution time of commands recorded by history. Bash displays the execution time of commands recorded by history. In fact, Linux has long recorded the time when we hit each command. This adjustment can greatly enrich the readability of history. of course, t
In general, Bash is case-sensitive to commands, and can display the previous history command when you press the "Up" button. However, this is not very convenient, the following configuration, you can let bash ignore the case, and can be based on the input command header press "Up" key to display the history of the comm
Question: If a user is opening several bash interfaces at the same time, which Bash's history command record will be written in ~/.bash_history?A: All bash has its own histsize pen recorded in memory, because the log file will not be updated until the logoff, so the last bash will be last written, and the other
--~/.BASHRC-/ETC/BASHRCNon-interactive Login1) Su UserName2) Open terminal under graphical interface3) Execute script4) Any other bash instanceExecution order ~/.BASHRC--/ETC/BASHRC-/etc/profile.d/*.shBash quits taskThis file is read and executed when the user exits the login ~/.bash_logoutFunction: Create automatic Backup to clear temporary files, etc.Locate through the database to find files in the system cent7 minimal installation has discarded thi
Bash displays the execution time of commands recorded by history. Bash displays the execution time of commands recorded by history. In fact, Linux has long recorded the time when we hit each command. The adjustments in this way can greatly enrich the readability of history.
Tags: string alt match Delete offset size file internal command string
Command history
HistoryEnvironment variables:Histsize: Number of records in the command historyHistfile:~/.bash_historyHistfilesize: The number of history records in a command history filehistory-d OFFSET: Delete a HistoryHistory + Numbers: Show the last n record commandsCall
Tags: Bash admin permissionsAfter a week, the progress seems a little slack, but after the weekend rallyShell (Shell)Gui:gnome,kde,xfceCli:sh,csh,ksh,bashBash (parent process)-----Bash (child process) they are independent of each other.Command history: HistoricalQuotes supported by bash:"Command Replacement (keyboard ~
Bash History function failure problem-Linux general technology-Linux programming and kernel information, the following is a detailed description. Today, I logged on to a remote server and found that the function of turning up the history record failed after the command was input.
After reading the. bash_history file, we found that the file size is 0, but the p
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.