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Aug 20, 2011 · For example - as told in the man xargs. -0 Change xargs to expect NUL (``\0'') characters as separators, instead of spaces and newlines. This is expected to be used in concert with the -print0 function in find (1). find . -print0 | xargs -0 echo.
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- Why Use The xargs command?
- The xargs Command
- Using xargs with WC
- Using xargs with Confirmation
- Using xargs with Multiple Commands
- Copying Files to Multiple Locations
- Deleting Files in Nested Directories
- Removing Nested Directories
- Deleting All Files, Except For One File Type
- Creating An Archive File with xargs
The xargs command is used to build execution pipelines using the standard data streams. In other words, you can use xargsto send the output of one command to another command as a parameter. All of the standard Linux utilities have three data streams associated with them. They are the standard input stream (stdin), the standard output stream (stdout...
xargs will accept piped input. It can also accept input from a file. xargs uses that input as parameters for the commands we've told it to work with. If we do not tell xargs to work with a specific command it will default to use echo. We can use that to demonstrate how xargswill always generate a single line of output, even from multi-line input. I...
We can use xargs to easily have wc count the words, characters, and linesin multiple files. This is what happens: 1. ls lists the *.page files and passes the list to xargs. 2. xargs passes the filenames to wc. 3. wctreats the filenames as if it had received them as command line parameters. The statistics for each file are displayed together with an...
We can use the -p (interactive) option to have xargsprompt us for confirmation that we are happy for it to proceed. If we pass a string of filenames to touch, through xargs, touch will create the filesfor us. The command that is going to be executed is displayed and xargswaits for us to respond by typing "y" or "Y", or "n" or "N", and pressing Ente...
We can use multiple commands with xargs by using the -I(initial arguments) option. This option defines a "replace-string." Wherever the token for the replace-string appears in the command line, the values that were supplied to xargsare inserted. Let's use the tree command to look at the subdirectories from the current directory. The -d (directory) ...
We can use xargsto allow us to copy files to multiple locations with a single command. We are going to pipe the names of two directories into xargs as the input parameters. We'll tell xargsto only pass one of these parameters at a time to the command it is working with. In this case, the command is cp. So the effect is to call cp twice, each time w...
If filenames have spaces and strange characters in them---such as newline characters--- xargs will not be able to interpret them correctly. We can overcome that problem by using the -0 (null terminator) option. This tells xargsto use the null character as the final delimiter for filenames. We're going to use find in this example. find has its own o...
Let's say we want to remove a set of nested subdirectories. treewill let us see them. This command will use find to search recursively within the current directory. The search target is a directory called "level_one". The directory names are passed through xargs to rm. The only significant changes between this command and the previous command are, ...
We can use find, xargs and rmto delete all files apart from one type we want to retain. It's slightly counterintuitive, but we provide the name of the filetype we wish to keep, not the name of the ones we want to delete. The -not option tells find to return the names of the files that don't match the search pattern. We're using the -I (initial argu...
We can use find to search for files and pass them through xargs to tar, to create an archive file. We're going to search in the current directory. The search pattern is "*.page" so we're going to be looking for ".page" files. The files are listed as expected, as the archive file is created.
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xargs（英文全拼： eXtended ARGuments）是给命令传递参数的一个过滤器，也是组合多个命令的一个工具。. xargs 可以将管道或标准输入（stdin）数据转换成命令行参数，也能够从文件的输出中读取数据。. xargs 也可以将单行或多行文本输入转换为其他格式，例如多行变 ...
Believed to be either 0.3–340 kt [3] or 0.3–400 kt [4] in the weapon's various mods. The B61 nuclear bomb is the primary thermonuclear gravity bomb in the United States Enduring Stockpile following the end of the Cold War. It is a low-to-intermediate yield strategic and tactical nuclear weapon featuring a two-stage radiation implosion design.
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