UUX
Section: User Commands (1C)
Updated: April 24, 1986
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NAME
uux - unix to unix command execution
SYNOPSIS
uux
[
-
] [
-cClLnprz
] [
-aname
] [
-ggrade
] [
-xdebug
]
command-string
DESCRIPTION
Uux
will gather zero or more files from various systems,
execute a command on a specified system
and then send standard output to a file on a specified
system.
The
command-string
is made up of one or more arguments that look
like a Shell command line,
except that the command and file names
may be prefixed by
system-name!.
A null system-name is interpreted as the local system.
File names may be one of
-
(1) a full path name;
-
(2) a path name preceded by
~user
where
user
is a login name on the specified system
and is replaced by that user's login directory;
-
(3) a path name prefixed by
~;
where
~
is expanded to the system's public directory (usually /usr/spool/uucppublic);
-
(4) a partial pathname, which is prefixed by the current directory.
As an example, the command
-
uux "!diff usg!/usr/dan/file1 pwba!/a4/dan/file2 > !~/dan/file.diff"
will get the file1 and file2 files
from the ``usg'' and ``pwba'' machines,
execute a
diff(1)
command
and put the results in file.diff in the
local /usr/spool/uucppublic/dan/ directory.
Any special shell characters, such as <>;|, should be quoted either
by quoting the entire command-string, or quoting the special
characters as individual arguments.
Uux
will attempt to get all files to the execution system.
For files that are output files, the file name must be escaped using
parentheses.
For example, the command
-
uux a!wc b!/usr/file1 \(c!/usr/file2 \)
get /usr/file1 from system ``b'' and send it to system ``a'',
perform a wc command on that file
and send the result of the
wc
command to system ``c''.
Uux
will notify you by mail if the requested command on the remote
system was disallowed.
This notification can be turned off by the -n option.
The following options are interpreted by
uux:
- -
-
The standard input to
uux
is made the standard input to the
command-string.
- -aname
-
Use
name
as the user identification replacing the initiator user-id.
- -c
-
Do not copy local file to the spool directory for transfer to the remote
machine (this is the default).
- -C
-
Force the copy of local files to the spool directory for transfer.
- -ggrade
-
Grade
is a single letter/number, from
0
to
9,
A
to
Z,
or
a
to
z;
0
is the highest, and
z
is the lowest grade.
The default is
A;
by comparison
uucp(1C)
defaults to
n
and mail is usually sent at grade
C.
Lower grades should be specified for high-volume jobs, such as news.
- -l
-
Try and make a link from the original file to the spool directory.
If the link cannot be made, copy the file.
- -n
-
Do not notify the user when the command completes.
- -p
-
Same as -:
The standard input to
uux
is made the standard input to the
command-string.
- -r
-
Do not start the file transfer, just queue the job.
- -xdebug
-
Produce debugging output on stdout.
The debug is a number between 0 and 9;
higher numbers give more detailed information. Debugging is permitted
only for privileged users (specifically, those with read access to
L.sys(5).
- -z
-
Notify the user only if the command fails.
- -L
-
Start up
uucico
with the -L flag. This will force
calls to be made to local sites only (see
uucico(8C)).
FILES
- /usr/spool/uucp
-
spool directories
- /usr/lib/uucp/*
-
UUCP configuration data and daemons
SEE ALSO
uucp(1C), uucico(8C), uuxqt(8C).
WARNING
For security reasons, many installations will
limit the list of
commands executable on behalf of an incoming request from
uux.
Many sites will permit little more than
the receipt of mail (see
mail(1))
via
uux.
BUGS
Only the first command of a shell pipeline may
have a
system-name!.
All other commands are executed on the system of the first
command.
The use of the shell metacharacter
*
will probably not do what you want it to do.
The shell tokens
<<
and
>>
are not implemented.
When invoking
uux
from
csh(1),
the `!' character must be prefixed by the `\' escape to inhibit
csh's
history mechanism. (Quotes are not sufficient.)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- FILES
-
- SEE ALSO
-
- WARNING
-
- BUGS
-
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