.ad l
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.TH mirror 1 "1 Feb 1994" "netlib"
.SH NAME
mirror - execute masterslave script to update files by ftp
.SH SYNOPSIS
.B "mirror" \fIftpcmd\fP \fIhost\fP \fIdirectory\fP
\fIcompressed.suffix\fP < \fIcommands\fP
.SH DESCRIPTION
\fBMirror\fP directly executes the "time" and "rm" commands
produced by \fBmasterslave\fP and rewrites the "get" commands into
a form suitable for \fBftp\fP.
.PP
The first argument, \fIftpcmd\fP, is the local name of the ftp command;
normally this would be "ftp" but on some systems it is "pftp" to work
through a proxy.
.PP
\fIHost\fP is the name of the remote (master) system.  (\fIMirror\fP is executed
on the slave;  it is both more reliable and more secure to pull than to push.)
.PP
\fIDirectory\fP is the starting directory on remote system.
.PP
The file \fICompressed.suffix\fP lists suffixes that
characterize files not suitable for compression.
Here is part of the list that netlib uses:
.B
.nf
  .gif  GIF image file
  .gz   gzip   (available in /netlib/gnu/gzip/)
  .jpg  JPEG image file
.fi
.PP
\fICommands\fP are output from \fImasterslave\fP.
.SH EXAMPLE
.PP
.B
  masterslave master.crc slave.crc |
  mirror ftp netlib.att.com . /netlib/crc/net/compressed
.SH SEE ALSO
.B
masterslave(1)
.SH AUTHOR
Eric Grosse <ehg@research.att.com>

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