2015-01-30 20:51:23 +00:00
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.Dd January 30, 2015
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2015-01-31 13:20:02 +00:00
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.Dt XARGS 1
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2015-01-31 19:37:03 +00:00
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.Os sbase
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2015-01-30 20:51:23 +00:00
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.Sh NAME
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.Nm xargs
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2015-02-01 20:28:17 +00:00
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.Nd construct argument list(s) and execute command
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2015-01-30 20:51:23 +00:00
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.Sh SYNOPSIS
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.Nm
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.Op Fl n Ar maxargs
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.Op Fl r
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.Op Fl E Ar eofstr
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.Op Ar cmd Op Ar arg...
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.Sh DESCRIPTION
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2015-02-01 19:52:28 +00:00
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.Nm
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reads space, tab, newline and EOF delimited strings from stdin
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and executes the specified
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.Ar cmd
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with the strings as
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.Ar arguments .
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.Pp
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2014-01-03 11:52:47 +00:00
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Any arguments specified on the command line are given to the command upon
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each invocation, followed by some number of the arguments read from
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stdin. The command is repeatedly executed one or more times until stdin
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is exhausted.
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2015-01-30 20:51:23 +00:00
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.Pp
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2014-01-03 11:52:47 +00:00
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Spaces, tabs and newlines may be embedded in arguments using single (`'')
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2015-02-06 14:43:46 +00:00
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or double (`"') quotes or backslashes ('\\'). Single quotes escape all
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2014-01-03 11:52:47 +00:00
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non-single quote characters, excluding newlines, up to the matching single
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quote. Double quotes escape all non-double quote characters, excluding
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newlines, up to the matching double quote. Any single character, including
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2014-01-03 11:52:47 +00:00
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newlines, may be escaped by a backslash.
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2015-01-30 20:51:23 +00:00
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.Sh OPTIONS
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.Bl -tag -width Ds
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.It Fl n Ar maxargs
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2015-02-01 19:52:28 +00:00
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Use at most
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.Ar maxargs
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arguments per command line.
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2015-01-30 20:51:23 +00:00
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.It Fl r
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2015-02-06 14:43:46 +00:00
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Do not run the command if there are no arguments. Normally the command is
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2014-01-03 11:52:47 +00:00
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executed at least once even if there are no arguments.
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.It Fl E Ar eofstr
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Use
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.Ar eofstr
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as a logical EOF marker.
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2015-01-30 20:51:23 +00:00
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.El
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.Sh EXIT STATUS
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2014-01-07 11:37:24 +00:00
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xargs exits with one of the following values:
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2015-01-30 20:51:23 +00:00
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.Bl -tag -width Ds
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.It 0
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All invocations of command returned a zero exit status.
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.It 123
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One or more invocations of command returned a nonzero exit status.
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.It 124
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The command exited with a 255 exit status.
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.It 125
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The command was killed or stopped by a signal.
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.It 126
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The command was found but could not be executed.
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.It 127
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The command could not be found.
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.It 1
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Some other error occurred.
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.El
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