03-25-2009
duplicate post. closing the thread!!!
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
we have an hp-ux and a user requested me if i can password protect the dtterm. i know that this is possible but can you give me some hints in making this happen?
thanks :cool: (2 Replies)
Discussion started by: inquirer
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2. UNIX for Dummies Questions & Answers
Working of a Aix 4.3 (using ksh)
Have started dtlogin daemon .
< root 26376 1 0 14:07:19 - 0:08 ./dtlogin -daemon >
Have set dtconfig -e
< The CDE environment is Already set as the default User Interface. >
Have executed " export DISPLAY=10.1.187.86:0.0
Once all this is... (4 Replies)
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3. HP-UX
Hello,
We are having a problem with running dtterm off a RHEL server. Logging into an HP-UX server from a RHEL 5.1 desktop, setting DISPLAY and running dtterm, the caps lock does not work. We have been playing with xmodmap & stty but to no avail.
Any help appreciated.
mgb (7 Replies)
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4. UNIX for Advanced & Expert Users
Hello,
Not sure if this is the right place to post it but..
I have a requirement to set Caps lock and/or Num lock on and off via a Cron job.
Now I have working scripts that do the job, but as soon as X starts up the jobs no longer run (well they appear to, but Caps lock and Num lock do not... (0 Replies)
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5. Red Hat
Hello all,
If anyone has time, I have a few questions:
How do I do the following in Linux. We are using Red Hat and Oracle Enterprise Linux, which is based on Red Hat too.
1. How to lock the account after a few (like 3) invalid password attempts?
2. How do you lock a screen after 30... (1 Reply)
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6. Shell Programming and Scripting
I'm trying to write a shell script that runs periodically and if I'm not at the keyboard, it should do one thing, but if I am at the keyboard, it should do another thing. Therefore I've decided that it would be good if I could press down the CTRL key, (or some other key) and have the shell script... (8 Replies)
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7. UNIX for Advanced & Expert Users
Hi all,
I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...).
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8. UNIX for Dummies Questions & Answers
hi all
this s quite a foolish problem. I seem to hav pressed some keys s.t in unix, my letters are comin in caps and with caps lock on, i am getting lowercase letters. :o
Pls help.
Also is there any reference or manual where i can check in case such problems arrise?
thanx in advance
curiosity (4 Replies)
Discussion started by: curiosity
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9. Shell Programming and Scripting
With use of sed/awk, how can I print all possible combinations of a word with caps/non-caps.
Eg
Applying operation on "cap" should generate output as follows.
cap
CAP
Cap
cAp
caP
CAp
cAP
CaP (12 Replies)
Discussion started by: anil510
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LEARN ABOUT HPUX
sem_post
sem_post(2) System Calls Manual sem_post(2)
NAME
sem_post - unlock a POSIX semaphore
SYNOPSIS
DESCRIPTION
is used to post the semaphore referenced by sem. The calling thread will not return from its call to unless it can either: increment the
semaphore value, if there are no blocked threads on this semaphore; give the semaphore to a blocked thread, if there are any blocked
threads on this semaphore; or have an error condition.
If the semaphore value is < 0, the semaphore has blocked threads, waiting for it to become available (the absolute value of the semaphore's
value indicates the number of waiters at that moment). If the semaphore value is >= 0, the semaphore has no waiters.
If the semaphore has no waiters at the time its value is checked, the semaphore's value will be atomically incremented, with respect to the
checking of its value, up to its maximum value as specified by If the semaphore has waiters at the time its value is checked, the semaphore
value is not changed. Instead, the calling thread will attempt to wake up a waiter. If the semaphore has waiters having realtime priori-
ties, the thread must wake up the highest priority waiter. Otherwise the thread at the head of the channel queue is woken up.
When a waiter is successfully woken, the semaphore being posted will be given to the woken waiter. In other words, the state of the sema-
phore remains unchanged. Instead, the semaphore being posted will be inherited by the waiter being woken from this call to
If the specified semaphore referred to by sem is a named semaphore, then this semaphore must have been opened by the calling process with
The calling process must have both read and write permissions on the semaphore to perform this operation. The routine may be called asyn-
chronously, i.e. from a signal handler.
To use this function, link in the realtime library by specifying on the compiler or linker command line.
EXAMPLES
The following call to will post the semaphore sem.
RETURN VALUE
A successful call to will return 0 and the calling thread would have posted the semaphore. Otherwise, the call to will return -1 with
errno set to the appropriate value of the error condition.
ERRORS
fails and does not perform the requested operation if any of the following conditions are encountered:
[EPERM] The calling process does not have the privileges necessary to post the semaphore.
[EINVAL] The argument sem does not refer to a valid semaphore.
SEE ALSO
<semaphore.h>.
STANDARDS CONFORMANCE
sem_post(2)