Chinaunix

标题: xargs表示什么意思？ [打印本页]

作者: abcdex 时间: 2013-06-04 14:50
标题: xargs表示什么意思？

GOOGLE上的解释如下

-I 表示 find 传递给xargs的结果由{}来代替

netstat -Ana|grep 1521|awk '{print $1}'|sort|uniq|xargs -I {}

不知道这个有什么用

作者: wenhq 时间: 2013-06-04 15:03
NAME
   xargs - build and execute command lines from standard input

SYNOPSIS
   xargs  [-0prtx] [-E eof-str] [-e[eof-str]] [--eof[=eof-str]] [--null] [-d delimiter] [--delimiter delimiter] [-I replace-str] [-i[replace-str]]
   [--replace[=replace-str]]  [-l[max-lines]]  [-L  max-lines]  [--max-lines[=max-lines]]  [-n  max-args]  [--max-args=max-args]  [-s max-chars]
   [--max-chars=max-chars]  [-P  max-procs]  [--max-procs=max-procs]  [--interactive]  [--verbose]  [--exit] [--no-run-if-empty] [--arg-file=file]
   [--version] [--help] [command [initial-arguments]]

DESCRIPTION
   This manual page documents the GNU version of xargs.  xargs reads items from the standard input, delimited by blanks (which  can  be  protected
   with  double  or single quotes or a backslash) or newlines, and executes the command (default is /bin/echo) one or more times with any initial-
   arguments followed by items read from standard input.  Blank lines on the standard input are ignored.

   Because Unix filenames can contain blanks and newlines, this default behaviour is often problematic; filenames containing  blanks  and/or  new-
   lines  are incorrectly processed by xargs.  In these situations it is better to use the '-0' option, which prevents such problems. When using
   this option you will need to ensure that the program which produces the input for xargs also uses a null character as  a  separator. If  that
   program is GNU find for example, the '-print0' option does this for you.

   If  any  invocation of the command exits with a status of 255, xargs will stop immediately without reading any further input.  An error message
   is issued on stderr when this happens.

作者: Shell_HAT 时间: 2013-06-04 15:46
http://bbs.chinaunix.net/thread-4083205-1-1.html

作者: blackold 时间: 2013-06-05 09:05
就 X arguments 的意思，挺形象的。

欢迎光临 Chinaunix (http://bbs.chinaunix.net/)