is command in linux

Use the cut command in Linux There are many command lines for text processing in Linux. Here we will introduce the cut command. The cut command can cut lines in text files by byte, character, and field, and then write the specified part to the

Try the ip command in Linux. ifconfig is out of date. Linux's ip commands are similar to ifconfig, but the former is more powerful and aims to replace the latter. Using ip commands, you can easily execute some network management tasks with only one

Use the w command and uptime command in Linux to view the system load In Linux, when querying the CPU and memory loads (usage), we are usually used to using top, atop, or ps, this article will introduce how to use the w command and uptime command to

Use the DD command in Linux to test the read/write speed of USB and SSD hard disks.Disk Drive Speed The disk drive speed is measured by the amount of read/write data per unit of time. The DD command is a simple command line tool that can read and

Application of the Kill command in Linux 1. The kill command is used to abort a process. 2. Format: kill [-s signal |-p] [-a] pid... kill-l [signal] 3. Parameter-s: Specifies the signal to be sent. -P: analog transmission signal. -L: Name List of

The common operation commands under Linux are FTP, LFTP and SFTP, and the graphical interface is very useful FileZilla. However, in the server command interface, LFTP is more convenient to use and more powerful than FTP. Lftp interface is like the

The Nohup command can not hang up the Run command, for example we often operate the server through the client tool, when the client tool and the server link is interrupted, the running command will also be interrupted.For this scenario, we can use

Make is a very important compilation command, both in Linux and in the UNIX environment. Whether you are developing your own projects or installing applications, we often use make or makes install. With make tools, we can break down large-scale

Linux is a "all-in-one" system, and the identity file in Linux does not pass the suffix, and the Find command searches for the entire system without specifying a lookup directory.I. Command formatFind Pathname _options[-print-exec-ok ...]pathname:

Crond is a command that Linux uses to execute programs on a regular basis. This task dispatch command is started by default when the operating system is installed. The Crond command periodically checks to see if there is any work to be done and the

The MV command is a command similar to CP , but it does not create replicas/replicas of files or directories. No matter what version of the Linux system you are using, the MV is installed on your Linux system by default. Take a look at some examples

Compression: TAR-CF New.tar data.txtDecompression: TAR-XF new.tar-c tmp/----> The premise is that TMP should exist first, so that the extracted files can be placed under the TMP directoryCompression: gzip Data.txt (gzip can only compress files

What does the CPU information in the top command of Linux mean?Cpu (s): 62.1% us, 15.9% sy,0.1% ni, 19.4% id,2.0% wa,0.1% hi,0.4% simem:8247956k total,8232004k used,15952k free,205240k buffersswap:8191992k total,48k used,8191944k free,7156092k

How to disable ping response under Linux:Echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_allIf you want to disable ping response as soon as you boot, add the above statement to/etc/rc.d/rc.local.If you want to resume using the ping command, you can

The top command is often used to monitor Linux system conditions, such as CPU, memory usage, the programmer basically knows this command, but it is strange to use it very few people, such as the top monitoring view of the memory value of the meaning

Linux File Compression archive operation command: Gzip/ungzip suffix. gzXz/unxz suffix. xzBzip2/bunzip2 suffix. bz2Tar for archiving and compressing-#: #为0-9 Specify compression ratioGzip-c name compression results output to standard output-D

The-c parameter of the TAR command$ TAR-CVF File2.tar/home/usr2/file2Tar:removing leading '/' from the Members namesHome/usr2/file2This command can package the/home/usr2/file2 file into the File2.tar in the current directory, note that the source

The Find command summarizes:1) Search by name,find/-type f-name ' xiaoyao.txt ', Find and delete:Find/-type f-name ' xiaoyao.txt '-exec rm -f {} \; or:find/-type f-name ' xiaoyao.txt ' |xargs rm-f2) Find files by modified time, such as last 5 days:

This command has not been used before, on the Internet to check the information, I think people write very well, so copied over.Title: Use of the Linux command evalLinks: http://blog.chinaunix.net/uid-21411227-id-1826706.htmlTitle: eval in the Linux

The difference between less and cat and more:The Cat command feature is used to display the contents of the entire file using no paging function, so it is often used with the more commands, and the Cat command is the ability to merge several files