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- UUUUUUUUXXXX((((1111CCCC)))) UUUUUUUUXXXX((((1111CCCC))))
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- uux - UNIX-to-UNIX system command execution
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- uuuuuuuuxxxx [ options ] command-string
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- _u_u_x 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.
-
- NOTE: For security reasons, most installations limit the list of
- commands executable on behalf of an incoming request from _u_u_x, permitting
- only the receipt of mail (see _m_a_i_l(1)). (Remote execution permissions
- are defined in ////eeeettttcccc////uuuuuuuuccccpppp////PPPPeeeerrrrmmmmiiiissssssssiiiioooonnnnssss.)
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- The _c_o_m_m_a_n_d-_s_t_r_i_n_g 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 _s_y_s_t_e_m-_n_a_m_e!!!!. A null _s_y_s_t_e_m-_n_a_m_e is interpreted as the local
- system.
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- File names may be one of
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- (1) a full path name;
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- (2) a path name preceded by ~~~~_x_x_x where _x_x_x is a login name on the
- specified system and is replaced by that user's login
- directory;
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- (3) anything else is prefixed by the current directory.
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- As an example, the command
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- uux "!diff usg!/usr/dan/file1 pwba!/a4/dan/file2 > !~/dan/file.diff"
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- will get the _f_i_l_e_1 and _f_i_l_e_2 files from the ``usg'' and ``pwba''
- machines, execute a _d_i_f_f(1) command and put the results in _f_i_l_e._d_i_f_f in
- the local PUBDIR/dan/ directory.
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- Any special shell characters such as <<<<>>>>;;;;|||| should be quoted either by
- quoting the entire _c_o_m_m_a_n_d-_s_t_r_i_n_g, or quoting the special characters as
- individual arguments.
-
- _u_u_x 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
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- uux a!cut -f1 b!/usr/file \(c!/usr/file\)
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- gets /usr/file from system "b" and sends it to system "a", performs a _c_u_t
- command on that file and sends the result of the _c_u_t command to system
- "c".
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- _u_u_x will notify you if the requested command on the remote system was
- disallowed. This notification can be turned off by the ----nnnn option. The
- response comes by remote mail from the remote machine.
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- The following _o_p_t_i_o_n_s are interpreted by _u_u_x:
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- ---- The standard input to _u_u_x is made the standard input to the
- _c_o_m_m_a_n_d-_s_t_r_i_n_g.
-
- ----aaaa_n_a_m_e Use _n_a_m_e as the user identification replacing the initiator
- user-id. (Notification will be returned to the user.)
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- ----bbbb Return whatever standard input was provided to the _u_u_x command
- if the exit status is non-zero.
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- ----cccc Do not copy local file to the spool directory for transfer to
- the remote machine (default).
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- ----CCCC Force the copy of local files to the spool directory for
- transfer.
-
- ----gggg_g_r_a_d_e _G_r_a_d_e is a single letter/number; lower ASCII sequence
- characters will cause the job to be transmitted earlier during
- a particular conversation.
-
- ----jjjj Output the jobid ASCII string on the standard output which is
- the job identification. This job identification can be used by
- _u_u_s_t_a_t to obtain the status or terminate a job.
-
- ----nnnn Do not notify the user if the command fails.
-
- ----pppp Same as -: The standard input to _u_u_x is made the standard
- input to the _c_o_m_m_a_n_d-_s_t_r_i_n_g.
-
- ----rrrr Do not start the file transfer, just queue the job.
-
- ----ssss_f_i_l_e Report status of the transfer in _f_i_l_e.
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- ----xxxx_d_e_b_u_g__l_e_v_e_l
- Produce debugging output on the standard output. The
- _d_e_b_u_g__l_e_v_e_l is a number between 0 and 9; higher numbers give
- more detailed information.
-
- ----zzzz Send success notification to the user.
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- FFFFIIIILLLLEEEESSSS
- /var/spool/uucp spool directories
- /etc/uucp/Permissions remote execution permissions
- /etc/uucp/* uucp system data files
- /usr/lib/uucp/* uucp administrative programs
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- PPPPaaaaggggeeee 2222
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- UUUUUUUUXXXX((((1111CCCC)))) UUUUUUUUXXXX((((1111CCCC))))
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- cut(1), mail(1), uucp(1C), uustat(1C).
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- WWWWAAAARRRRNNNNIIIINNNNGGGGSSSS
- Only the first command of a shell pipeline may have a _s_y_s_t_e_m-_n_a_m_e!!!!. 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.
-
- The execution of commands on remote systems takes place in an execution
- directory known to the _u_u_c_p system. All files required for the execution
- will be put into this directory unless they already reside on that
- machine. Therefore, the simple file name (without path or machine
- reference) must be unique within the _u_u_x request. The following command
- will NOT work:
-
- uux "a!diff b!/usr/dan/xyz c!/usr/dan/xyz > !xyz.diff"
-
- but the command
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- uux "a!diff a!/usr/dan/xyz c!/usr/dan/xyz > !xyz.diff"
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- will work. (If _d_i_f_f is a permitted command.)
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- BBBBUUUUGGGGSSSS
- Protected files and files that are in protected directories that are
- owned by the requestor can be sent in commands using _u_u_x. However, if
- the requestor is root, and the directory is not searchable by "other",
- the request will fail.
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