franco@alberta.UUCP (Franco Carlacci) (02/03/88)
The following observation has always intrigued me . When I log off using "logout", there is a noticeable delay before the system says good-bye. However if I use any sequenced prefixed with the letters "logo" the good-bye is immediate. Can someone tell me why this happens and why "logo" is so special. Franco Carlacci
bcw@rti.UUCP (Bruce Wright) (02/06/88)
In article <287@cavell.UUCP>, franco@alberta.UUCP (Franco Carlacci) writes: > The following observation has always intrigued me . When I log > off using "logout", there is a noticeable delay before the system > says good-bye. However if I use any sequenced prefixed with the > letters "logo" the good-bye is immediate. Can someone tell me > why this happens and why "logo" is so special. > I'm not sure what causes the delay you describe - it is not there in standard VMS. My guess is that there has been some fiddling with the "logout" definition in either the DCL tables or (more likely) that a symbol has been defined which redefines "lo*gout" to execute a command file (say to clean things up before actually logging you out). Do a "show symbol logout" - that should tell you if the logout command has been hidden with a symbol. The reason the logout is immediate if you type "logox" (or something similar) is that DCL only looks at the first four characters to determine the command - but if it's a symbol it will look at *all* the characters. (obviously it has to determine if it's a command _after_ it has determined it's not a symbol so there is not an ambiguity). So "logo" will be found as a valid symbol and execute the command file, but "logox" will not be a valid symbol but will have the first four characters = "logo" and be interpreted as a DCL command. This probably makes it all as clear as mud .... Bruce C. Wright
hydrovax@nmtsun.nmt.edu (M. Warner Losh) (02/06/88)
In article <287@cavell.UUCP>, franco@alberta.UUCP (Franco Carlacci) writes: > The following observation has always intrigued me . When I log > off using "logout", there is a noticeable delay before the system > says good-bye. However if I use any sequenced prefixed with the > letters "logo" the good-bye is immediate. Can someone tell me > why this happens and why "logo" is so special. > > Franco Carlacci Well now. That is an interesting problem. Let's see. On our system we have an automatic purge of files that is activated when the user logs out. The default for the system is have logout run sys$manager:sylogout.com, which purges the files. Now then, if a user on our system types logoasdf, that gets them off right now. Could it be that your system manager has done something similar? You can tell real fast by the following command: $ SHOW SYMBOL/ALL LOGOUT If anything shows up here, that is the problem. I hope that this helps some. -- bitnet: losh@nmt.csnet M. Warner Losh warner@hydrovax.nmt.csnet ! Don't know if this works, let me know. csnet: warner@hydrovax.nmt.edu uucp: ...{cmcl2, ihnp4}!lanl!unmvax!nmtsun!warner%hydrovax
dp@JASPER.Palladian.COM (Jeffrey Del Papa) (02/07/88)
Date: 3 Feb 88 07:31:49 GMT
From: ihnp4!alberta!franco@ucbvax.Berkeley.EDU (Franco Carlacci)
The following observation has always intrigued me . When I log
off using "logout", there is a noticeable delay before the system
says good-bye. However if I use any sequenced prefixed with the
letters "logo" the good-bye is immediate. Can someone tell me
why this happens and why "logo" is so special.
Franco Carlacci
your system manager has likely hooked some command file into the logout command,
but not variant spellings. try show symbol/global to see what if anything
is taking its place.
<dp>ca053@unocss.UUCP (Tim Russell) (02/07/88)
In article <287@cavell.UUCP>, franco@alberta.UUCP (Franco Carlacci) writes: > The following observation has always intrigued me . When I log > off using "logout", there is a noticeable delay before the system > says good-bye. However if I use any sequenced prefixed with the > letters "logo" the good-bye is immediate. Can someone tell me > why this happens and why "logo" is so special. An educated guess: Perhaps your system manager has defined the symbol "LOGOUT" to invoke accounting procedures? This would explain it, because using the shortened form would invoke only VMS's logout, while typing logout would cause a DCL file to be run, taking time. Try typing SHOW SYMBOL LOGOUT to see if I'm right... Timothy Russell (ihnp4!unocss!ca053) ============================================================================== I'll do anything for a real username! Anything! Name it! ==============================================================================