UUX(1C) UUX(1C) NAME uux - unix to unix command execution SYNOPSIS uux [ - ] [ -cClLnprz ] [ -a_n_a_m_e ] [ -g_g_r_a_d_e ] [ -x_d_e_b_u_g ] command- string DESCRIPTION _U_u_x will gather zero or more files from various systems, execute a com‐ mand on a specified system and then send standard output to a file on a specified system. 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 pre‐ fixed 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. File names may be one of (1) a full path name; (2) a path name preceded by ~_u_s_e_r where _u_s_e_r is a login name on the specified system and is replaced by that user’s login direc‐ tory; (3) a path name prefixed by ~; where ~ is expanded to the sys‐ tem’s public directory (usually /usr/spool/uucppublic); (4) a partial pathname, which is prefixed by the current direc‐ tory. 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 _d_i_f_f(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 _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 uux a!wc b!/usr/file1 \(c!/usr/file2 \) get /usr/file1 from system ‘‘b’’ and send it to system ‘‘a’’, perform a _w_c command on that file and send the result of the _w_c command to system ‘‘c’’. _U_u_x will notify you by mail if the requested command on the remote sys‐ tem was disallowed. This notification can be turned off by the -n option. The following _o_p_t_i_o_n_s are interpreted by _u_u_x: - 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. -a_n_a_m_e Use _n_a_m_e 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. -g_g_r_a_d_e _G_r_a_d_e 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 _u_u_c_p(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 _u_u_x is made the standard input to the _c_o_m_m_a_n_d_-_s_t_r_i_n_g. -r Do not start the file transfer, just queue the job. -x_d_e_b_u_g 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_._s_y_s(5)_. -z Notify the user only if the command fails. -L Start up _u_u_c_i_c_o with the -L flag. This will force calls to be made to local sites only (see _u_u_c_i_c_o(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 com‐ mands executable on behalf of an incoming request from _u_u_x. Many sites will permit little more than the receipt of mail (see _m_a_i_l(1)) via _u_u_x. BUGS 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. When invoking _u_u_x from _c_s_h(1), the ‘!’ character must be prefixed by the ‘\’ escape to inhibit _c_s_h’s history mechanism. (Quotes are not suf‐ ficient.) 7th Edition April 24, 1986 UUX(1C)