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uux - Remote command execution over UUCP
The actual command execution is done by the uuxqt (8) daemon.
File arguments can be gathered from remote systems to the execution system, as can standard input. Standard output may be directed to a file on a remote system.
The command name may be preceded by a system name followed by an exclamation point if it is to be executed on a remote system. An empty system name is taken as the local system.
Each argument that contains an exclamation point is treated as naming a file. The system which the file is on is before the exclamation point, and the pathname on that system follows it. An empty system name is taken as the local system; this must be used to transfer a file to a command being executed on a remote system. If the path is not absolute, it will be appended to the current working directory on the local system; the result may not be meaningful on the remote system. A pathname may begin with ~/, in which case it is relative to the UUCP public directory (usually /usr/spool/uucppublic or /var/spool/uucppublic) on the appropriate system. A pathname may begin with ~name/, in which case it is relative to the home directory of the named user on the appropriate system.
Standard input and output may be redirected as usual; the pathnames used may contain exclamation points to indicate that they are on remote systems. Note that the redirection characters must be quoted so that they are passed to uux rather than interpreted by the shell. Append redirection (>>) does not work.
All specified files are gathered together into a single directory
before execution of the command begins. This means that each file
must have a distinct base name. For example,
uux 'sys1!diff sys2!~user1/foo sys3!~user2/foo >!foo.diff'will fail because both files will be copied to sys1 and stored under the name foo.
Arguments may be quoted by parentheses to avoid interpretation of exclamation points. This is useful when executing the uucp command on a remote system.
A request to execute an empty command (e.g., uux sys!) will create a poll file for the specified system.
The exit status of uux is one of the codes found in the header file sysexits.h. In particular, EX_OK ( 0 ) indicates success, and EX_TEMPFAIL ( 75 ) indicates a temporary failure.
Multiple types may be given, separated by commas, and the --debug option may appear multiple times. A number may also be given, which will turn on that many types from the foregoing list; for example, --debug 2 is equivalent to --debug abnormal,chat.
uux -z - sys1!rmail user1Execute the command ``rmail user1'' on the system sys1, giving it as standard input whatever is given to uux as standard input. If a failure occurs, send a message using mail (1).
uux 'diff -c sys1!~user1/file1 sys2!~user2/file2 >!file.diff'Fetch the two named files from system sys1 and system sys2 and execute diff putting the result in file.diff in the current directory. The current directory must be writable by the uuxqt (8) daemon for this to work.
uux 'sys1!uucp ~user1/file1 (sys2!~user2/file2)'Execute uucp on the system sys1 copying file1 (on system sys1) to sys2. This illustrates the use of parentheses for quoting.
Some of the options are dependent on the capabilities of the uuxqt (8) daemon on the remote system.
Too many jobids are output by --jobid, and there is no good way to cancel a local execution requiring remote files.
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