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Xargs -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-08-17) xargs is a command of the (Trademark for a powerful operating system) Unix and most (additional info and facts about Unix-like) Unix-like ((computer science) software that controls the execution of computer programs and may provide various services) operating system which eases passing command output to another command as command line arguments. It splits its often (additional info and facts about piped) piped (Signal going into an electronic system) input at (additional info and facts about whitespace) whitespaces (or the (additional info and facts about null character) null character) and calls the command given as an argument with each element of the split input as parameter. does the same thing, but uses GNU specific extensions to find and xargs to separate filenames using the (additional info and facts about null character) null character; this will work even if there are whitespace characters, including (additional info and facts about newline) newlines, in the filenames. www.absoluteastronomy.com /encyclopedia/x/xa/xargs.htm   (305 words)

UNIX IN THE ENTERPRISE - The magic of xargs To create commands, xargs takes whatever is passed to it from standard input and combines it with whatever arguments were provided to it in a very linear way. xargs cal", demonstrated how the fields passed on standard in were tacked on to the end of the command being created (cal 8 2003). Fortunately, xargs has numerous options and one of them provides a way to control where the data being passed on standard in are to be inserted into the command being created. www.itworld.com /nl/unix_insider/07312003/pf_index.html   (945 words)

xargs(1): construct argument lists/invoke ... - Linux man page The xargs utility shall construct a command line consisting of the utility and argument operands specified followed by as many arguments read in sequence from standard input as fit in length and number constraints specified by the options. The xargs utility shall limit the command line length such that when the command line is invoked, the combined argument and environment lists (see the exec family of functions in the System Interfaces volume of IEEE Std 1003.1-2001) shall not exceed {ARG_MAX}-2048 bytes. The requirement that xargs never produces command lines such that invocation of utility is within 2048 bytes of hitting the POSIX exec {ARG_MAX} limitations is intended to guarantee that the invoked utility has room to modify its environment variables and command line arguments and still be able to invoke another utility. www.die.net /doc/linux/man/man1/xargs.1.html   (2633 words)

xargs SYNTAX xargs [-0pt] [-E eofstr] [-I replstr [-R replacements]] [-J replstr] [-L number] [-n number [-x]] [-s size] [utility [argument...]] If no utility is specified, echo is used. The xargs utility exits immediately (without processing any further input) if a command line cannot be assembled, utility cannot be invoked, an invocation of the utility is terminated by a signal or an invocation of the utility exits with a value of 255. If utility cannot be found, xargs exits with a value of 127, otherwise if utility cannot be executed, xargs exits with a value of 126. www.ss64.com /osx/xargs.html   (862 words)

xargs The xargs utility constructs a command line consisting of the utility and argument operands specified followed by as many arguments read in sequence from standard input as will fit in length and number constraints specified by the options. The xargs utility supports the XBD specification, Utility Syntax Guidelines, except that the -e, -i and -l take optional option-arguments that cannot be separate arguments. If xargs is used to bundle output of commands like find dir -print or ls into commands to be executed, unexpected results are likely if any filenames contain any blank characters or newline characters. www.opengroup.org /onlinepubs/007908799/xcu/xargs.html   (1824 words)

Commands Reference, Volume 6, v - z - xargs Command The xargs command reads from standard input until either EOF or the specified string is reached. Stops running the xargs command if any Command line is greater than the number of bytes specified by the -s Size flag. The -t flag causes the xargs command to display each command before running it, so you can see what is happening. publib16.boulder.ibm.com /pseries/en_US/cmds/aixcmds6/xargs.htm   (1332 words)

Using xargs   (Site not responding. Last check: 2007-08-17) Using xargs, you can pull off feats of greatness and not have to write a script to do it. The default string that xargs will look to replace when using the -i flag is the curly braces. As your command lines get a little more complex, or you start using xargs in scripts, there are a couple of useful troubleshooting flags you may find helpful if you run into issues. www.linuxlaboratory.org /30.php   (751 words)

/usr/share/man/cat1/xargs(0)   (Site not responding. Last check: 2007-08-17) The xargs utility reads space, tab, newline and end-offile delimited arguments from the standard input and executes the specified utility with them as arguments. If utility cannot be invoked, is terminated by a signal or terminates without calling exit(2), xargs exits with an exit status of 127. The xargs utility is expected to be POSIX 1003.2 compliant. www.neosoft.com /neosoft/man/xargs.1.html   (421 words)

xargs   (Site not responding. Last check: 2007-08-17) xargs reads argu- ments from the standard input, delimited by blanks (which can be pro- tected 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 arguments read from standard input. Fewer than max-args arguments will be used if the size (see the -s option) is exceeded, unless the -x option is given, in which case xargs will exit. If max-procs is 0, xargs will run as many processes as possible at a time. gd.tuwien.ac.at /linuxcommand.org/man_pages/xargs1.html   (546 words)

Daemon News '200311' : '"Newbies Corner: Command Line Too Long "' The xargs utility reads space, tab, newline and end-of-file delimited arguments from the standard input and executes the specified utility with them as arguments. Xargs sucks up the list and then feeds them back one (or more) at a time to the specified program until they are all gone. The -0 (numeric zero) option told xargs to pass the entire line to fondu for processing as one argument. ezine.daemonnews.org /200311/newbies.html   (732 words)

Commands Reference, Volume 6 - xargs Command The generated command line length is the sum of the size, in bytes, of the Command and each Argument treated as strings, including a null byte terminator for each of these strings. If a command line meeting the specified requirements cannot be assembled, the command cannot be invoked, an invocation of the command is terminated by a signal, or an invocation of the command exits with exit status 255. For this reason you may want to run the command only if all the file names fit on one line. publibn.boulder.ibm.com /doc_link/de_DE/a_doc_lib/cmds/aixcmds6/xargs.htm   (1322 words)

xargs (Linux Reviews) 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. It is not possible for xargs to be used securely, since there will always be a time gap between the production of the list of input files and their use in the commands that xargs issues. The second invocation of xargs does have such a limit, but we have ensured that the it never encounters a line which is longer than it can handle. linuxreviews.org /man/xargs   (1341 words)

UNIX man pages : xargs () xargs -0 /bin/rm -f Find files named core in or below the directory /tmp and delete them, processing filenames in such a way that file or directory names containing spaces or newlines are correctly handled. Exit codes greater than 128 are used by the shell to indicate that a program died due to a fatal signal. xargs -i -s 100000 rm '{}' Here, the first invocation of xargs has no input line length limit because it doesn't use the -i option. www.dac.neu.edu /cgi-bin/man-cgi?xargs   (1213 words)

[No title]   (Site not responding. Last check: 2007-08-17) XARGS(1) BSD Reference Manual XARGS(1) NAME xargs - construct argument list(s) and execute utility SYNOPSIS xargs [-t] [[-x]-n number] [-s size] [utility [arguments...]] DESCRIPTION The xargs utility reads space, tab, newline and end-of-file delimited ar- guments from the standard input and executes the specified utility with them as arguments. The utility and any arguments specified on the command line are given to the utility upon each invocation, followed by some number of the argu- ments read from standard input. The xargs utility exits immediately (without processing any further in- put) if a command line cannot be assembled, utility cannot be invoked, an invocation of the utility is terminated by a signal or an invocation of the utility exits with a value of 255. www.eecs.harvard.edu /~vino/vino/release-0.40/man/commandref/xargs.1.txt   (473 words)

(Slightly skeptical) Unix Utilities Mini Tutorials: Find The xargs command solves this problem by enabling users to run a single command on many files at one time. Two other useful options for xargs are the -p option, which makes xargs interactive, and the -n args option, which makes xargs run the specified command with only args number of arguments. xargs runs the specified command on the filenames from its standard input, so interactive commands such as cp -i, mv -i, and rm -i don't work right. www.softpanorama.org /Tools/Find/find_mini_tutorial.shtml   (2374 words)

xargs xargs passes these arguments in several bundles to command, allowing command to process more arguments than it could normally handle at once. SYNTAX xargs [options] [command] OPTIONS -0 --null Expect filenames to be terminated by NULL instead of whitespace. xargs -n2 diff The previous line would be invoked as a shell script, specifying filenames as arguments. www.ss64.com /bash/xargs.html   (327 words)

findutils - GNU Project - Free Software Foundation (FSF) The xargs program builds and executes command lines by gathering together arguments it reads on the standard input. An online version of the documentation is also available, but please note that this is not always fully up-to-date. This is a typical example of how find and xargs are used with other utilities to provide powerful directory traversal capability. www.gnu.org /software/findutils   (1227 words)

[BusyBox] [patch] Why busybox xargs is broken.   (Site not responding. Last check: 2007-08-17) The spec says: > The xargs utility shall construct a command line consisting of the utility > and argument operands specified followed by as many arguments read in > sequence from standard input as fit in length and number constraints > specified by the options. If we just had xargs work correctly with no options, life would be good. Unfortunately, the implementation of xargs was apparently done by somebody who had never used it, and broke commands that relied on receiving multiple arguments, like grep and tar.) Glenn: your patch is in cvs now? www.busybox.net /lists/busybox/2003-October/009550.html   (416 words)

Unix Xargs Piping Toolkit Utility The xargs utility is one of the most useful and the most underappreciated utilities in Unix piping toolbox. Here xargs can help: if the argument list read by xargs is larger than the maximum allowed by the shell, xargs will bundle the arguments into smaller groups and execute command separately for each argument bundle. To follow on to Steve's xargs madness, let's say you've got some daemon process that is just running away. www.softpanorama.org /Tools/xargs.shtml   (1774 words)

findutils - Bugs: bug #3992, xargs leaves stdin open and... [Savannah]   (Site not responding. Last check: 2007-08-17) xargs passes its stdin unchanged to the process xargs chould connect /dev/null to file desc 0. Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved. savannah.gnu.org /bugs?func=detailitem&item_id=3992   (276 words)

2003_12_16.html xargs Documentation for xargs often suggests that it will pack the arguments as tightly as possible, so that the environment space is used to its maximum. Obviously xargs doesn't pack the command line as tightly as it could. I once had a situation where we had a directory full of files that needed to be handled just two at a time. aplawrence.com /Words/2003_12_16.html   (412 words)

xargs man document xargs [ options ] [ command [ argument... xargs constructs a command line consisting of the command and argument operands specified followed by as many arguments read in sequence from standard input as will fit in length and number constraints specified by the options and the local system. This sequence is repeated until an end-of-file condition is detected on standard input or an invocation of a constructed command line returns an exit status of 255. www.research.att.com /~gsf/man/man1/xargs.html   (461 words)

[svlug] xargs and filenames with shell special characters?   (Site not responding. Last check: 2007-08-17) I mean -0 is useful with find's -print0 but does > > not help in other cases (one has to use for loop approach in those cases > > which xargs was designed to replace). > > > > based on man page the xargs should simply read stdin, line by line, > > and supply it to the command (or echo, if no command is given). yes, you can use the loop but that's what the xargs is designed to replace... www.svlug.org /pipermail/svlug/2001-October/038140.html   (446 words)

xargs (1) xargs reads standard input until either end-of-file or the logical EOF string is encountered. xargs -i -t mv $1/{} $2/{} The next example combines the output of the parenthesized commands onto one line, which is then echoed to the end of file log: (logname; date; echo $0 $*) xargs >> log In the next two examples, the user is asked which files in the current directory are to be archived. tucupi.cptec.inpe.br /sx4/sx4man2/g1aa02e/xargs.1.html   (872 words)

Manpage of XARGS   (Site not responding. Last check: 2007-08-17) xargs [-0prtx] [-e[eof-str]] [-i[replace-str]] [-l[max-lines]] [-n max-args] [-s max-chars] [-P max-procs] [--null] [--eof[=eof-str]] [--replace[=replace-str]] [--max-lines[=max-lines]] [--interactive] [--max-chars=max-chars] [--verbose] [--exit] [--max-procs=max-procs] [--max-args=max-args] [--no-run-if-empty] [--version] [--help] [command [initial-arguments]] xargs reads arguments 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 arguments read from standard input. Prompt the user about whether to run each command line and read a line from the terminal. linux.wku.edu /cgi-bin/man2html?xargs+1   (559 words)

Cal Poly Central UNIX man pages : xargs ()   (Site not responding. Last check: 2007-08-17) xargs terminates if it receives a return code of -1 from command or if it cannot execute command. When command is a shell program, it should explicitly exit (see sh(1)) with an appropriate value to avoid accidentally returning with -1. xargs -i -t mv $1/{} $2/{} Combine the output of the parenthesized commands onto one line, then echo to the end of file log: (logname; date; echo $0 $*) www.calpoly.edu /cgi-bin/man-cgi?xargs   (1255 words)

Using find, xargs, and tar to create a huge archive (Cygwin, Linux, Unix) What I think was happening was that as xargs was managing the input to the tar command, tar kept re-writing the archive. That is, each time xargs passed a new block of input files to tar, tar perceived it as a new command, and went on to re-create the file named myfile.tar. This combination of find, tar, and xargs worked like a champ for me. I guess this is one of those things where Unix is "intuitively obvious once you know how to do it", because in retrospect this seems like the obvious solution. www.devdaily.com /blog/Content/2/17/395   (282 words)

Xargs   (Site not responding. Last check: 2007-08-17) xargs [-0prtx] [-e[eof-str]] [-i[replace-str]] [-l[max- lines]] [-n max-args] [-s max-chars] [-P max-procs] [--null] [--eof[=eof-str]] [--replace[=replace-str]] [--max-lines[=max-lines]] [--interactive] [--max- chars=max-chars] [--verbose] [--exit] [--max-procs=max- procs] [--max-args=max-args] [--no-run-if-empty] [--ver- sion] [--help] [command [initial-arguments]] xargs reads arguments from the standard input, delimited by blanks (which can be protected with double or single quotes or a backslash) or newlines, and executes the com- mand (default is /bin/echo) one or more times with any initial-arguments followed by arguments read from standard input. xargs will run as many processes as possible at a time. www.rtr.com /winpak/Documentation/xargs.htm   (503 words)

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