Trailing-Edge
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PDP-10 Archives
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BB-BT99U-BB_1990
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10,7/login/attach.hlp
There are 9 other files named attach.hlp in the archive. Click here to see a list.
ATTACH Command
Function
The ATTACH command detaches your current job (if you are logged
in) and connects your terminal to a detached job.
To prevent unauthorized access to detached jobs, the monitor
temporarily creates a new job when you specify the
project-programmer number argument. This temporary job runs
LOGIN, which asks for your password. If the temporary job
exceeds the system's maximum job capacity, you may be unable to
attach to the specified job. In this case, your first job
remains detached. You will be unable to ATTACH to any job until
there is room in the system.
Formats
ATTACH
ATTACH job [ppn]/switch
ATTACH job/switch
ATTACH [ppn]/switch
ATTACH user/switch
Where: job is the job-number of the job to which your terminal
is to be attached.
[ppn] is the project-programmer number of the desired
job. You must enclose the PPN in square brackets ([]).
If you are trying to attach from one job to another,
and both have the same PPN, you can omit the
project-programmer number argument.
user is the user-name associated with the desired job.
/switch is one of the following options:
/HELP:keyword Prints the HELP text. Valid keywords
are ARGUMENTS, SWITCHES, and TEXT. The
ARGUMENTS keyword displays a list of
valid switches and arguments. The
SWITCHES keyword displays only a list of
switches without detailed information.
The TEXT keyword displays the full HELP
text. TEXT is the default keyword.
/HELP may be abbreviated to /H.
/MAILCHECK: If YES, checks for the existence of
YES or NO new mail.
/MONITOR Leaves your terminal at monitor level.
/SETTTY: If YES, sets terminal parameters as
YES or NO specified with the /TERMINAL switch.
/TERMINAL:key Defines the terminal characteristics.
key is a keyword. The keywords for
/TERMINAL are described after the
switches.
/USER Leaves your terminal at user level.
/Terminal Keywords
The /TERMINAL switch takes a list of parameters to specify
terminal attributes. You can include multiple keywords for the
/TERMINAL switch, in which case you must enclose them in
parentheses and separate them with commas. Valid keywords are:
ALTMODE:yes-no Do [not] convert ASCII 175 and 176 to
ESCAPE (Altmode (ASCII 33)).
BLANKS:yes-no Do [not] print blank lines.
CRLF:yes-no Do [not] give a free CRLF at right margin.
DEFER:yes-no Do [not] set deferred echo mode.
DISPLAY:yes-no Terminal is [not] a display terminal.
ECHO:yes-no Do [not] set terminal echo.
EIGHTBIT:yes-no Do [not] set 8-bit mode.
ESCAPE:chr Set <ESCAPE> translation character to chr.
FILL:dnum Set filler class to dnum (0<=dnum<=3).
FORM:yes-no Terminal does [not] have hardware form
feeds.
GAG:yes-no Do [not] accept SEND messages at user
level.
LC:yes-no Terminal does [not] have lowercase
characters.
LENGTH:dnum Set the terminal screen length to dnum.
LOCALCOPY:yes-no Do [not] set terminal to local copy.
NOFILL Do not set terminal fill (same as FILL:0).
QUOTE:yes-no Do [not] enable control-V character
quoting.
RTCOMP:yes-no Do [not] disable special effects of R and
T.
RCVSPEED:n Set terminal receive speed to n baud.
SBELL:yes-no Do [not] ring the bell when output is
stopped due to exceeding STOP/SSTOP value.
SPEED:dnum Set receive and transmit speed to dnum
baud.
STOP:dnum Set the terminal STOP counter to dnum.
SSTOP:dnum Set the terminal SSTOP counter to dnum.
TABS:yes-no Terminal does [not] have hardware tabs.
TAPE:yes-no Do [not] allow XON to start paper-tape
reader.
TYPE:xxx Set terminal type to xxx.
UNPAUSE:chr Set the unpause character to chr.
UC:yes-no Terminal does [not] have uppercase
characters only.
WIDTH:dnum Set carriage width to dnum columns.
XONXOFF:yes-no Do [not] allow S/Q to pause output.
XMTSPEED:dnum Set terminal transmit speed to dnum baud.
Switches of the form /*xxxxxx are unique to one character.
The asterisk is NOT part of the switch name. The following
is a list of possible arguments which may be accepted by
some switches and keywords:
args A list of keywords and optional arguments.
atxt A possibly quoted string of ASCII characters.
You must include quotation marks if the string
contains any characters other than alphanumerics
or a dash.
chr A single, possibly quoted character or an octal
constant.
cnum Core argument: decimal number followed by
optional K or P.
dnum Decimal number followed by optional K, M, or G.
filespec A standard TOPS-10 file designator of the form
dev:file.ext[path].
onum Octal number followed by optional K, M, or G.
pathspec A standard TOPS-10 path designator of the form:
[project#,programmer#,sfd1,sfd2,...].
prefix A prefix is the last three characters of the
"[LGNxxx ...]" or "%LGNxxx ..." messages.
stxt A possibly quoted string of SIXBIT characters.
You must include quotation marks if the string
contains any characters other than alphanumerics
or a dash.
yes-no Switch and keyword arguments may either be NO,
YES, OFF (no), ON (yes), 0 (no), or 1 (yes). In
addition, you can precede the switch or keyword
name with NO to negate its action (such as
/NOxxxxxx instead of /xxxxxx:NO).
Characteristics
Does not destroy the core image of either job.
Does not require that you be logged in.
Restrictions
Remote users cannot attach to jobs with a project number of 1.
Batch programs cannot use this command.
Examples
1. Look at jobs 1 and 5 with SYSTAT.
.SYSTAT 1 5<RET>
1 27,5434 DET QUOLST 36+62 to 6 #
#MEANS NON-SYSTEM HI-SEG
5 27,5434 TTY31 SYSTAT 19+SPY RN 25 $
$ MEANS EXECUTE ONLY
Output shows that job 1 is detached, and job 5 is attached to
terminal number 31.
You attach to job 1 from job 5.
.ATTACH 1<RET>
FROM JOB 5
The two jobs have the same project-programmer number;
therefore, neither the project-programmer number nor the
password is required.
Check jobs 1 and 5 again.
.SYSTAT 1 5<RET>
1 27,5434 TTY31 SYSTAT 19+SPY RN 25 $
$ MEANS EXECUTE ONLY
5 27,5434 DET SYSTAT 24+SPY ^C 23 $
$ MEANS EXECUTE ONLY
Job 1 is now attached to TTY31, and job 5 is detached.
2. You log in to the system. You are given job 7; terminal
number 116 is attached to your job (7).
.LOGIN 27,235<RET>
JOB 7 R5743A SYS #40/2 TTY116
PASSWORD: <RET>
hh:mm dd-mmm-yyyy TUE
You attach to an existing detached job (35) with a different
PPN. This automatically detaches your current job (7). You
enter the correct password at the prompt and LOGIN attaches
your terminal to job 35.
.ATTACH 35<RET>
PASSWORD:<RET>
FROM JOB 7
You attach to job 7 again. You do not need to enter a
password because job 7 has your original PPN.
.ATTACH 7<RET>
FROM JOB 35
You attach to job 35 again, but you mis-type the password.
LOGIN does not give you a second chance.
.ATTACH 35<RET>
PASSWORD:<RET>
?CAN'T ATTACH TO JOB