05-03-2010
My first encounter with UNIX(AIX) was two years back :-)
So much to learn so little time :-)
8 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
can anybody tel lme,how to instal NTS -150 on a unix network,it needs some patch to fetch time frm serve,,?? (2 Replies)
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I have a list of interfaces and time the interface was last active. I can't figure out how to convert the time in the second column,
Fa1/14 0
Se0/0/0 0
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Fa1/12... (7 Replies)
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3. Shell Programming and Scripting
Here is two time I have:
Jul 12 16:02:01
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4. Solaris
Hello World
I am facing following issue on machine
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Sun Fire X4200 M2
OS:
Solaris 10/08 s10x_u6wos_07b X86
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Jun 28 08:11:46 backupsrv in.mpathd: Improved failure detection time 24528 ms on (inet nge1) for group "prd"
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5. UNIX for Dummies Questions & Answers
I'd like to convert a date string in the form of sun aug 19 09:03:10 EDT 2012, to unixtime timestamp using awk.
I tried
This is how each line of the file looks like, different date and time in this format
Sun Aug 19 08:33:45 EDT 2012, user1(108.6.217.236) all: test on the 17th
... (2 Replies)
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I needed some help in adding a duration (in seconds) to a start time (in hhmmss format) and a start date (in mmddyy format) in order to get an end date and end time. The concept of a leap year is also to be considered while incrementing the day. The code/ function that I have formed so far is as... (3 Replies)
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Hi guys thanks for the help for my previous posts.Now i have a requirement that i download a XMl file which has UTC time stamp.I need to convert UTC time into Unix server timezone.
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8. Programming
Just finished a quick Python script to send the current unix time over to the Arduino from macOS, so in the absence of GPS or some other way to get the unix timestamp (epoch time) to the Arduino, I can get my macOS and Arduino UNO synced to within a second.
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LEARN ABOUT DEBIAN
io_nonblock
io_nonblock(3) Library Functions Manual io_nonblock(3)
NAME
io_nonblock - switch to non-blocking I/O
SYNTAX
#include <io.h>
void io_nonblock(int64 fd);
DESCRIPTION
io_nonblock puts UNIX descriptor fd into ``non-blocking mode.'' Calling io_nonblock(fd) before io_fd(fd) makes io_tryread and io_trywrite
faster and more efficient.
Actually, current UNIX kernels do not support non-blocking descriptors; they support non-blocking open files. Furthermore, many programs
will break if they encounter non-blocking mode. This means that you must not use io_nonblock for a descriptor inherited from another pro-
gram.
io_nonblock has no return value; it always succeeds. If d is not the number of a UNIX descriptor, io_nonblock has no effect.
If io_fd is given a descriptor in blocking mode, io_tryread and io_trywrite go through the following contortions to avoid blocking:
1 Stop if poll says that the descriptor is not ready. Otherwise there's a good chance, but not a guarantee: even if poll says the descrip-
tor is ready, the descriptor might not be ready a moment later. (Furthermore, poll can fail on some systems.)
2 Catch SIGALRM. SIGALRM must not be blocked, and must not be used elsewhere in the program.
3 Set an interval timer so that any blocking call will be interrupted by SIGALRM within 10 milliseconds. (Current UNIX kernels do not
allow any shorter interval.) Of course, this may still mean a 10-millisecond delay.
If io_fd is given a descriptor in non-blocking mode (or a descriptor for a regular disk file), io_tryread and io_trywrite avoid these con-
tortions.
SEE ALSO
io_wait(3), io_canwrite(3)
io_nonblock(3)