xargs

Kill a process that does not release spaceYou can also write a loop with the following command, but this command is simpler than a loopLsof |grep deleted |awk ' {print $} ' |xargs-n1-t kill-9Xargs-n1 means that the process is routed one by one to kill-9 of course-N2 represents two two and so onXargs-t shows more intuitive actions performed[[email protected] ~]# echo "1 2 3 4" |xargs-n11234[[email protected]

calls utility on each line of the input, using REPLSTR to represent each row (usually Replstr is "{}"). REPLSTR is replaced five times in utility arguments, sixth and above Xargs not replaced.When used with 01, instead of a newline character, it is split with-L number does not cut with a cut, but is called with the data of this number row after every number row is read utility-N number is cut and the results are grouped by each number, using each set

to 3w later)Okay, so here's the question: besides grep, what are the Linux commands that support regular expression search files?Three, a strong combination to find the file is definitely the Find command, man, found that find is actually supporting the regular expression. Command:Find. -regextype "Egrep"-regex "\./1\.2\.3\. (2[5-9]| [3-7] [0-9]|8[0-3])/sceneserver\.log\.14 (2[2-9]|3) |11|120[1-9]). *-print0 | xargs-0 grep ' meritorious acquisition '

ago (the day before yesterday)#find. -mtime 13. Current time 48 hours ago (2 days ago)#find. -mtime +14. Current time 24 hours – current time (yesterday-today)#find. -mtime-1Examples of commands:Package the log files within 7 days of the directory.Find/apps/spark/app/logs-mtime-7-print |xargs tar cjf test.tar.gz将该目录下7天以内的日志文件进行删除，总是保留最新的。find /apps/spark/app/logs -mtime -7 -print |xargs rm -rf 或者使用exec实现：

The pipeline takes the previous standard output as the following standard input, and xargs the standard input as the parameter of the commandYou can try running the following code:echo "--help" |catecho "--help" |xargs CatThe results are as follows:If you enter cat directly on the command line and do not enter a command parameter, then cat waits for standard input, you enter content through the keyboard and

Article title: Shell basics: Chapter 2 use find and xargs. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Author: Sorting: lanlingsheng 　　 Sometimes you may need to search for files with certain characteristics in the system (such as file permissions, file owner, file length, file type, and so on ). There may be m

To create a file:Touch test{0..2}.txt------------Create multiple files in successionRedirect:> Output> Overwrite,>> append,2>> error REDIRECT outputCat>>test.txt input text ends with Ctrl+dEcho ' >>test.txt>test.txt emptying Test.txtListlist 2>error.log put the error in Error.logEcho ' >a.txt 2>1XargsXargs can read into the stdin data, and with blank characters or word-breaking characters as a resolution, the stdin data is separated into arguments.　　　　　　　　　　Linux--touch,

[Email protected] ok]# lsof-ntp-i: A3119[email protected] ok]# netstat-lnutp|grep ATCP0 0 192.168.122.1: - 0.0.0.0:* LISTEN3299/DNSMASQ TCP0 0 0.0.0.0: A 0.0.0.0:* LISTEN3119/sshd TCP0 0::: A:::* LISTEN3119/sshd[Email protected] ok]# Netstat-lnutp|grep ATCP0 0 192.168.122.1: - 0.0.0.0:* LISTEN3299/DNSMASQ TCP0 0 0.0.0.0: A 0.0.0.0:* LISTEN8904/sshd TCP0 0::: A:::* LISTEN8904/sshd UDP0 0 192.168.122.1: -

Find is a linux Command that lists the files in the file system that match the expression. You can specify a combination of different commands, such as the name, category, time, size, and permission of the file, only those that are exactly the same

{}; : Executes commands for each file that is found, and each operation is confirmed by the user; -exec COMMAND {}; : Executes commands for each file that is found; Note: When find passes the file path found to the following command, it is the first time to find out all eligible file paths and pass them to the following commands at once, but some commands cannot accept too long arguments, and the command execution fails; another way to circumvent this problem:find |

The use of the Linuxxargs command xargs is a filter for passing parameters to the command and a tool for combining multiple commands. It divides a data stream into small enough blocks to facilitate processing by filters and commands. In general, xargs reads data from a pipe or stdin,... the use of xargs commands in Linux is a filter for passing parameters to comm

When a matching file is processed using the-EXEC option of the Find command, the Find command passes all matching files to exec execution. However, some systems have a limit on the length of the command that can be passed to exec so that an overflow error occurs after the Find command runs for a few minutes. The error message is usually "parameter column too Long" or "parameter column overflow". This is where the Xargs command is used, especially with

Transferred from: 82347473 1. CPU 100%, use top to view CPU 2. Delete the CPU or 100% of the process. 3. It is estimated that the process is hidden. 4. One execution task is added to the scheduled task. 5: Open the connection https://pastebin.com/raw/xbY7p5Tb to get the following content 6: Open the https://pastebin.com/raw/uuYVPLXd, found a base64 encoded string, 7. Use base64 to decode the content and obtain the following script content. #! /Bin/bash Shell =/bin/sh Path =/usr/local/sb

1. When deleting a large batch of files in a directory, when using RM-RF or RM * will prompt the parameter list too long by modifying the command to: Find. -name "*" | Xargs rm-rf ' * ', successfully deleted 2, need to put a directory of all files mv to another directory, if the current directory file is particularly many, simple use of the MV Source directory directory will prompt the parameter list too long by modifying the command as: LS |

The 20 good habits to be used in Unix are: 1) create a directory tree in a single command. 2) change the path. Do not move the archive. 3) combine commands with control operators. 4) exercise caution when referencing variables. 5) Use escape sequences to manage long input. 6) group commands in the list. 7) Use xargs outside of find. 8) Know When grep should execute count-when should it bypass. 9) match certain fields in the output, not just the rows.

Common Linux commands (20) and common linux commands When you use the-exec option of the find command to process matched files, the find command passes all matching files to exec for execution. However, some systems have limits on the length of commands that can be passed to exec, so that an overflow error will occur after the find command runs for several minutes. The error message is usually "the parameter column is too long" or "parameter column overflow ". This is the use of the

"Archive contents" 7. Use the xargs command to filter the output of the find command. Example:~ /Tmp $ ls-1 | xargsDecember_report1_readme a archive.tar mkdirhier. sh~ /Tmp $ ls-1 | xargs fileDecember_Report.pdf: PDF document, version 1.3README: ASCII textA: directoryArchive.tar: POSIX tar archiveMkdirhier. sh: Bourne shell script text executable~ /Tmp $ 8. Know when to use grep to count, and when not Exam

#!/bin/sh. build/envsetup.shlunch 1case $1 in "pc") mmm packages/apps/Contacts/ find out -name Contacts.apk |xargs -t -i adb push {} system/app/ ;; "pp") mmm packages/providers/ContactsProvider find out -name ContactsProvider.apk |xargs -t -i adb push {} system/app/ ;; "ph") mmm packages/apps/Phone/ find out -name Phone.apk |

single listExample:$ (cd tmp/a/b/c/| | mkdir-p tmp/a/b/c /> var= $PWD; CD ~; Tar xvf-c $VAR Archive.tar)/> | Mailx admin-s "Archive contents" 7. Use the Xargs command to filter the output of the Find command. Example:~/tmp $ ls-1 | XargsDecember_report.pdf README a Archive.tar mkdirhier.sh~/tmp $ ls-1 | Xargs fileDecember_Report.pdf:PDF Document, version 1.3Readme:ascii textA:directoryArchive.tar:POSIX Tar

In Linux, some commands can greatly improve the efficiency. This article will introduce the find and grep commands. The two of them can be a must-have Linux Command and I will use them almost every day. The structure of this article is as follows: Find command Common form of the find command Common options and instances of the find command Find and xargs Grep command General grep Command Format Grep Regular Expression metach