06-21-2011
Quote:
Originally Posted by
avinashpv
Hi everyone,
This is my first post in the forum. :-)
I was asked this question for an interview recently.
Q: What will happen if the .profile file has only the exit command in it and nothing else.
(Assume that every other settings are in place to run the .profile file, when the user logs in.)
I don't know the answer yet.
I thought of two possible answers :
1: The next time the user tries to login the .profile gets executed and the user will be logged out of the session. In short, the user will never be able to login.
2: The system will throw some kind of error to let us know of a faulty .profile file. (Just a wild guess)
Please assist.
Thanks in advance.
Avinash
this feels like a homework question.
in any learning I often tell people to try it on a non production system and see what happens.
on any system I have seen I expect it will just log you out.
I have even see sysadmins use this as part of the system security, DONT do that, it not system security.
if you don't want user to login then lock the account.
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LEARN ABOUT DEBIAN
lintian-info
LINTIAN-INFO(1) User Contributed Perl Documentation LINTIAN-INFO(1)
NAME
lintian-info - give detailed information about Lintian's error tags
SYNOPSIS
lintian-info [log-file...]
lintian-info --tags tag ...
DESCRIPTION
The lintian-info command parses the output of the lintian command and gives verbose information about the listed Lintian error tags, parses
a Lintian override file and gives verbose information about the tags included, or (if given the -t or --tags option) explains a given tag
or tags.
If no log-file is specified on the command line, this command expects its input on stdin. Thus, the output of lintian can either be piped
through lintian-info or a log file produced by lintian can be processed with this command. (Note, though, that the lintian command has a
command line option -i to display the same results as lintian-info, so you will not normally need to pipe the output of lintian into this
command.)
OPTIONS
-a, --annotate
Read from standard input or any files specified on the command line and search the input for lines formatted like Lintian override
entries. For each one that was found, display verbose information about that tag.
-h, --help
Display usage information and exit.
--profile prof
Use the severities from the vendor profile prof when displaying tags. If the profile name does not contain a slash, the default
profile for than vendor is chosen.
If not specified, lintian-info loads the best profile for the current vendor.
Please Refer to the Lintian User Manual for the full documentation of profiles.
-t, --tags
Rather than treating them as log file names, treat any command-line options as tag names and display the descriptions of each tag.
EXIT STATUS
If -t or --tags was given and one or more of the tags specified were unknown, this command returns the exit code 1. Otherwise, it always
returns with exit code 0.
SEE ALSO
lintian(1)
AUTHORS
Niels Thykier <niels@thykier.net>
Richard Braakman <dark@xs4all.nl>
Christian Schwarz <schwarz@monet.m.isar.de>
perl v5.14.2 2013-02-16 LINTIAN-INFO(1)