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BSD 2.11 - man page for xargs (bsd section 1)

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XARGS(1)										 XARGS(1)

       xargs - construct argument list(s) and execute utility

       xargs [ -t ][[ -x ] -n number ][ -s size ][ utility [ arguments...  ]]

       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.

       The utility and any arguments specified on the command line are given to the utility  upon
       each  invocation,  followed by some number of the arguments read from standard input.  The
       utility is repeatedly executed until standard input is exhausted.

       Spaces, tabs and newlines may be embedded in arguments using single  (`` ' '')  or  double
       (``"'')	quotes or backslashes (``\'').	Single quotes escape all non-single quote charac-
       ters, excluding newlines, up to the matching single quote.  Double quotes escape all  non-
       double  quote characters, excluding newlines, up to the matching double quote.  Any single
       character, including newlines, may be escaped by a backslash.

       The options are as follows:

       -n number Set the maximum number of arguments taken from standard input for  each  invoca-
		 tion  of  the utility.  An invocation of utility will use less than number stan-
		 dard input arguments if the number of	bytes  accumulated  (see  the  s  option)
		 exceeds  the  specified  size or there are fewer than number arguments remaining
		 for the last invocation of utility.  The current default  value  for  number  is

       -s size	 Set the maximum number of bytes for the command line length provided to utility.
		 The sum of the length of the utility name and the arguments  passed  to  utility
		 (including  /dev/null	terminators)  will  be less than or equal to this number.
		 The current default value for size is ARG_MAX - 2048.

       -t	 Echo the command to be executed to standard error immediately before it is  exe-

       -x	 Force	xargs  to terminate immediately if a command line containing number argu-
		 ments will not fit in the specified (or default) command line length.

       If no utility is specified, echo(1) is used.

       Undefined behavior may occur if utility reads from the standard input.

       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 ter-
       minated by a signal or an invocation of the utility exits with a value of 255.

       The xargs utility exits with a value of 0 if  no  error	occurs.   If  utility  cannot  be
       invoked,  xargs	exits with a value of 127.  If any other error occurs, xargs exits with a
       value of 1.

       echo(1), find(1)

       The xargs utility is expected to be IEEE Std 1003.2("POSIX") compliant.

					   June 6, 1993 				 XARGS(1)
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