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Annotation of 43BSDReno/usr.bin/xargs/xargs.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1990 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" This code is derived from software contributed to Berkeley by
        !             5: .\" John B. Roll Jr.
        !             6: .\"
        !             7: .\" Redistribution and use in source and binary forms are permitted
        !             8: .\" provided that the above copyright notice and this paragraph are
        !             9: .\" duplicated in all such forms and that any documentation,
        !            10: .\" advertising materials, and other materials related to such
        !            11: .\" distribution and use acknowledge that the software was developed
        !            12: .\" by the University of California, Berkeley.  The name of the
        !            13: .\" University may not be used to endorse or promote products derived
        !            14: .\" from this software without specific prior written permission.
        !            15: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16: .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17: .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18: .\"
        !            19: .\"    @(#)xargs.1     5.1 (Berkeley) 4/17/90
        !            20: .\"
        !            21: .TH XARGS 1 "April 17, 1990"
        !            22: .UC 7
        !            23: .SH NAME
        !            24: xargs \- construct argument list(s) and execute utility.
        !            25: .SH SYNOPSIS
        !            26: .ft B
        !            27: xargs [\-t] [\-n number] [\-s size] [utility [argument ...]]
        !            28: .ft R
        !            29: .SH DESCRIPTION
        !            30: The
        !            31: .I xargs utility
        !            32: reads space, tab, and newline delimited arguments from the standard
        !            33: input and executes the specified
        !            34: .I utility
        !            35: with them as arguments.
        !            36: Any arguments specified on the command line are given to the
        !            37: .I utility
        !            38: upon each invocation, followed by some number of the arguments read
        !            39: from standard input.
        !            40: The
        !            41: .I utility
        !            42: is repeatedly executed until standard input is exhausted.
        !            43: .PP
        !            44: Spaces and tabs may be embedded in arguments using single (`` ' '') or
        !            45: double (``"'') quotes or backslashes (``\e'').
        !            46: Single or double quotes escape all characters to the next matching quote
        !            47: character, backslashes escape the next character.
        !            48: Newlines may not be escaped.
        !            49: .PP
        !            50: The following options are available:
        !            51: .TP
        !            52: -n number
        !            53: Set the maximum number of arguments used from standard input for
        !            54: each invocation of the utility.
        !            55: An invocation of
        !            56: .I utility
        !            57: will use less than
        !            58: .I number
        !            59: standard input arguments if the number of bytes accumulated (see the
        !            60: .I \-s
        !            61: option) exceeds the specified size or the last invocation of
        !            62: .I utility
        !            63: has fewer than
        !            64: .I number
        !            65: arguments remaining.
        !            66: The default value for
        !            67: .I number
        !            68: is 255.
        !            69: .TP
        !            70: -s size
        !            71: Set the maximum number of bytes to which the last component of the
        !            72: .I utility
        !            73: name, the command-line arguments, and the arguments read in from
        !            74: standard input may sum.
        !            75: The default value for
        !            76: .I size
        !            77: is 2048.
        !            78: .TP
        !            79: -t
        !            80: Echo the command to be executed to standard error immediately before it
        !            81: is executed.
        !            82: .PP
        !            83: If no
        !            84: .I utility
        !            85: is specified,
        !            86: .IR echo (1)
        !            87: is used.
        !            88: .PP
        !            89: .I Utility
        !            90: should never read from the standard input.
        !            91: .PP
        !            92: .I Xargs
        !            93: exits with 0 if no error occurred, and 1 otherwise.
        !            94: .SH "SEE ALSO"
        !            95: echo(1)
        !            96: .SH STANDARDS
        !            97: The
        !            98: .I xargs
        !            99: utility is expected to be POSIX 1003.2 compliant.

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