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NAME

       par - parallel command processing

SYNOPSIS

       par [-diqx] [-c  command] [-l  logfile] [-n #] file [file...]

DESCRIPTION

       par  takes a list of files to run a command on.  The first line of each
       file begins with a colon (:) or a pound-sign  (#).   If  a  colon,  the
       remainder  of  the  line is a command to run for each of the subsequent
       lines.  If  a  pound-sign,  then  each  subsequent  line  is  a  (self-
       contained)  command,  unless the -c option was specified, in which case
       it operates as if the argument to -c had followed a colon on the  first
       line.

       In  each  of  the cases where the lines of the file following the first
       are not commands (i.e.: colon or -c), instances  of  open-close  braces
       ({}) in the command will be replaced by these values.

       For example, a inputfile whose contents is:

            : echo {}
            a
            b
            c

       run with par like so:

            %par -q inputfile

       will produce the following output (order will vary):

            b
            a
            c

       The command-line options are as follows:

       -c     Command  to  be  run  on  each  of  the  arguments following the
              command-line options, where the first line of the input  file(s)
              begins with a pound-sign (#).

       -d     Print debugging information on standard error (stderr).

       -i     Run   commands   interactively   through   (multiple)   xterm(1)
              processes.

       -l     Prefix of logfile name, as  in  prefix.N  where  N  is  the  par
              process number ([0..]).

              Default: par.log.<time>.[0..]

       -n     Number of simultaneous processes.

              Default: 3

       -q     Quiet mode.  Do not log anything.  -q is mutually exclusive with
              the -x and -l options and the option appearing  last  will  take
              precedence.

       -x     View par logs in real-time via an xterm(1).

FILES

       par.log.T.N Log file; where T is the current time in seconds since the
       epoch and N is the par process number ([0..]).

                                  9 Jan 2004                            par(1)