is command in linux

Tar [-cxtzjvfppn] file and directory ....Parameters:-C: Create a parameter command for the compressed file );-X: Unlock the parameter command of a compressed file!-T: view the files in the tarfile!Note that C/X/T can only exist under the parameter!

Document directory Process Information How to end a process Although the Job Manager in windows is not easy to use (I personally prefer process Explorer), it is also convenient to conveniently view processes, CPU, memory... it can also easily

Document directory Oracle listener Oracle management agent In Linux, you can run the ps command to view Oracle-related processes.Oracle listener This command will list the processes of Oracle Net Listener [Oracle @ bej301441 ~] $ PS-Ef |

This is not about using any programming language to implement this function, but using Shell and MySQL commands in Linux. Java code Echo "use test; select * from test order by id desc; "|/usr/local/mysql/bin/mysql-uXXXX-pXXXX --

In Linux, set the environment variable command -- export syntax: export [-p] [variable name] [variable setting value] parameter description: [-p] lists all environment variables that the shell assigns to the program. Command: displays or sets

The date command can get the current time. man shows that many parameters of date can be used, which is easy to format. For example: Copy codeThe code is as follows:Date + "% F"Output Format: 2011-12-31 Date + "% F % H: % M: % S"Output Format: 201

In linux, you can run the top command to check the system running status and process running status. you can run the man command to check the top Manual. the top command is interpreted as displayLinuxtasks. you have seen another explanation:

In linux, the shutdown command cannot be used. [root @ centos ~] # Shutdown-hnowbash: shutdown: commandnotfound. command View: # echo $ PATH/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/B. in linux, the shutdown command cannot be used.

Using the previous command on a Linux Terminal to reduce keyboard input and keyboard input can greatly improve the efficiency of programmers. the use of shortcut keys is a good example. Programmers often use terminals. Is there a similar shortcut on

Recently, Cainiao is learning shell programming. it seems that it is too late. it is just a matter of time for BS to start programming. In the process of learning shell programming, I encountered a very mentally retarded problem. I had consulted

As the name suggests, TcpDump, a network data collection and analysis tool, can completely intercept the "header" of packets transmitted in the network for analysis. It supports filtering network layer, protocol, host, network or port, and provides

The first type keyword mainly includes host, net, port, such as host210.27.48.2, specifying 210.27.48.2 as a host, net202.0.0.0 specifying 202.0.0.0 as a network address, and port23 specifying port number as 23. If no type is specified, the default

In linux, the md5sum command uses the brief md5 algorithm to verify the integrity of network file transmission and prevent file tampering. The message digest algorithm (message-digestalgorithm) generates a 32-bit fingerprint with a hexadecimal

The find command has several options for searching files based on your system's timestamp. These timestamps include the last modification time of the mtime file content. the time when the atime file is read or accessed, the ctime file state change

The Linux test tool tcpdump command is used to monitor TCP/IP connections and directly read data headers at the data link layer. You can specify which data packets are monitored and which control formats are to be displayed. For example, we want to

In Linux, use the ac command to display the user's total connection time in Linux. we can use the ac command to display the user's logon time information. Currently, you can use the d option in the ac command to display the output time by day. In

Top commands are often used to monitor linux system conditions, such as cpu and memory usage. Programmers generally know this command, but it is strange that few people can use it well, for example, the memory value in the top monitoring View has

In linux, set the ls command to display the file and folder colors. use dircolors-p to see the default color settings, including various colors and definitions such as bold, underline, and blinking. The $ LS_COLORS variable sets the color. for

The main post to be deleted must be counted in the log file, and the log file is separated by tab characters. assume that the log file name is delete. log. Save the format and save the data as follows, delete the date post type (11 as the Main Post,

1. start: start from the menu: Application & mdash; & gt; attachment & mdash; & gt; the text editor executes the following commands from the command line: gedit2. window description: menu bar: contains all the commands required to process files in