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123 lines
1.5 KiB
Groff
123 lines
1.5 KiB
Groff
.TH 9P 1
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.SH NAME
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9p \- read and write files on a 9P server
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.SH SYNOPSIS
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.B 9p
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[
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.B -a
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.I addr
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]
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.B read
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.I path
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.br
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.B 9p
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[
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.B -a
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.I addr
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]
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.B readfd
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.I path
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.PP
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.B 9p
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[
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.B -a
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.I addr
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]
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.B write
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.I path
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.br
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.B 9p
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[
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.B -a
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.I addr
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]
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.B writefd
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.I path
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.PP
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.B 9p
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[
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.B -a
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.I addr
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]
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.B stat
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.I path
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.SH DESCRIPTION
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.I 9p
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is a trivial 9P client that can access a single file on a 9P server.
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It can be useful for manual interaction with a 9P server or for
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accessing simple 9P services from within shell scripts.
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.PP
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The first argument is a command, one of:
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.TP
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.B read
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print the contents of
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.I path
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to standard output
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.TP
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.B write
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write data on standard input to
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.I path
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.TP
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.BR readfd ", " writefd
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like
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.B read
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and
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.B write
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but use
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.IR openfd (9p)
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instead of
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.IR open ;
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this masks errors and is mainly useful for debugging
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the implementation of
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.I openfd
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.TP
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.B stat
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execute
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.I stat (9p)
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on
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.I path
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and print the result
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.PD
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.PP
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.I 9p
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dials
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.I address
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to connect to the 9P server.
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If the
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.B -a
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option is not given,
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.I 9p
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requires the
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.I path
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to be of the form
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.IB service / subpath \fR;
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it connects to the Unix domain socket
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.I service
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in the name space directory
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(see
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.IR intro (4))
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and then accesses
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.IR subpath .
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.SH EXAMPLE
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To update
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.IR plumber (4)'s
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copy of your plumbing rules after editing
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.BR $HOME/lib/plumbing :
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.IP
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.EX
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cat $HOME/lib/plumbing | 9p write plumb/rules
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.EE
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.PP
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To display the contents of the current
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.IR acme (4)
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window:
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.IP
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.EX
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9p read acme/$winid/body
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.EE
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.SH SOURCE
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.B \*9/src/cmd/9p.c
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.SH SEE ALSO
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.IR intro (4),
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.IR intro (9p),
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.IR 9pclient (3)
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