| 1 | .\" $Id: rep.1,v 1.2 1997-01-11 19:12:41 ghudson Exp $ |
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| 2 | .\" |
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| 3 | .\" Copyright 1996 by the Massachusetts Institute of Technology. |
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| 4 | .\" |
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| 5 | .\" Permission to use, copy, modify, and distribute this |
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| 6 | .\" software and its documentation for any purpose and without |
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| 7 | .\" fee is hereby granted, provided that the above copyright |
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| 8 | .\" notice appear in all copies and that both that copyright |
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| 9 | .\" notice and this permission notice appear in supporting |
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| 10 | .\" documentation, and that the name of M.I.T. not be used in |
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| 11 | .\" advertising or publicity pertaining to distribution of the |
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| 12 | .\" software without specific, written prior permission. |
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| 13 | .\" M.I.T. makes no representations about the suitability of |
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| 14 | .\" this software for any purpose. It is provided "as is" |
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| 15 | .\" without express or implied warranty. |
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| 16 | .\" |
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| 17 | .TH REP 1 "December 29, 1996" |
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| 18 | .SH NAME |
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| 19 | rep \- repeatedly execute a command |
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| 20 | .SH SYNOPSIS |
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| 21 | .B rep |
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| 22 | [ |
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| 23 | .B \-interval |
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| 24 | ] command args ... |
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| 25 | .SH DESCRIPTION |
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| 26 | .I Rep |
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| 27 | repeatedly executes a command and prints out the output in the same |
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| 28 | place each time. (It uses cursor optimization routines to only update |
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| 29 | characters which have changed.) |
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| 30 | .PP |
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| 31 | If the first argument is a hyphen followed by a decimal number, it |
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| 32 | will be treated as the number of seconds between repetitions. By |
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| 33 | default, the interval is one second. |
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| 34 | .SH EXAMPLES |
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| 35 | .B rep ps -ef |
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| 36 | .PP |
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| 37 | prints out a display of system activity. |
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| 38 | .PP |
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| 39 | .B rep -1 date |
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| 40 | .PP |
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| 41 | puts a digital clock on the screen. |
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