11-08-2007
Somebody once said "Give a man a fish..."
(a) what is the fibonacci sequence?
(b) how would you sequence on paper?
(c) how would you automate that process?
(d) do you know what recursion is?
(e) is it actually essential here?
10 More Discussions You Might Find Interesting
1. Programming
ok, heres what i want i need....well want, hehe...
in a program, its a simple menu, i need to log the user running the program off...back to the login prompt. this is not a super user, just a normal account.
i know i could just set the program to be the users login shell..but i'd rather do... (1 Reply)
Discussion started by: acromi
1 Replies
2. Programming
I just want to get the read() system call to do it's thing! LOL It's now 3:30 AM in the morning, and as I'm the stubborn type I don't like to go to bed with unsolved code :) However I submit humbly now to anyone who can show me what my dumb mistake is. The program imitates a daemon process that so... (6 Replies)
Discussion started by: johnsonmj
6 Replies
3. Solaris
hello ,
I have a C program which runs perfectly on linux but gives a segmentation core dump when i try to run it on solaris.
The compilation of the c code happens without any errors on solaris.
Any pointers
thanks
Nayeem (2 Replies)
Discussion started by: nayeemmz
2 Replies
4. Shell Programming and Scripting
How to write a program to
store the list of ordinary files and the directory files in the specified directory in two files called dir.dat and ord.dat. Then print the largest directory and largest file? (1 Reply)
Discussion started by: rameshparsa
1 Replies
5. Shell Programming and Scripting
how to write shell program. EX : to check whether a string is a palindrome or not. (9 Replies)
Discussion started by: raram
9 Replies
6. Linux
Can any1 guide me how to invoke a java program from a sh file.
do i need to set up the class path.
how to include the needed jar files. (1 Reply)
Discussion started by: Dine
1 Replies
7. UNIX for Dummies Questions & Answers
Hi everybody,
Can anyone suggest me some good books on Linux Prog.. I know richard stevens is always there.. But any specific books on Linux Porgramming and Networking in Linux.. Wud be of great help if anybody replies.. (4 Replies)
Discussion started by: srikumar_cs
4 Replies
8. Infrastructure Monitoring
Hello guys,
this solaris 10 on V480, does anyone know what do below errors indicate? I get them at console when system boots.
server: svc_tp_create: Could not register prog 300598 vers 1 on udp
Nov 11 16:57:43 servername server: svc_tp_create: Could not register prog 300598 vers 1 on tcp... (2 Replies)
Discussion started by: upengan78
2 Replies
9. Programming
Hello Friends,
I made this program, it is running fine. when i try to add this line of code in to do repeat. It is giving segmentation error. can you please tell me how should i fix tht error.
program runs fine. when i add
char r;
if statement
while (ch r ='y')
some cofe... (4 Replies)
Discussion started by: Learnerabc
4 Replies
10. Debian
HI
Can anyone provide me with codes for file transfer server to client or vice versa?
Also please explain how to compile those programs in ubuntu terminal as i am totally new to socket programming.
Thanks (0 Replies)
Discussion started by: mayhemtrigger
0 Replies
LEARN ABOUT OPENSOLARIS
halockrun
halockrun(1M) System Administration Commands halockrun(1M)
NAME
halockrun - run a child program while holding a file lock
SYNOPSIS
/usr/cluster/bin/halockrun [-nsv] [-e exitcode] lockfilename
prog [args]
DESCRIPTION
The halockrun utility provides a convenient means to claim a file lock on a file and run a program while holding that lock. As this utility
supports script locking, this utility is useful when programming in scripting languages such as the Bourne shell. See sh(1).
halockrun opens the file lockfilename and claims an exclusive mode file lock on the entire file. See fcntl(2) fcntl(2)). Then it runs the
program prog with arguments args as a child process and waits for the child process to exit. When the child exits, halockrun releases the
lock, and exits with the same exit code with which the child exited.
The overall effect is that the child prog is run as a critical section, and that this critical section is well-formed, in that no matter
how the child terminates, the lock is released.
If the file lockfilename cannot be opened or created, then halockrun prints an error message on stderr and exits with exit code 99.
You can run this command in the global zone or in a non-global zone. The command affects only the global or non-global zone in which you
issue the command.
OPTIONS
The following options are supported:
-e exitcode Normally, errors detected by halockrun exit with exit code 99. The -e option provides a means to change this
special exit code to a different value.
-n The lock should be requested in non-blocking mode: if the lock cannot be granted immediately, halockrun exits
immediately, with exit code 1, without running prog. This behavior is not affected by the -e option.
Without the -n option, the lock is requested in blocking mode, thus, the halockrun utility blocks waiting for
the lock to become available.
-s Claim the file lock in shared mode, rather than in exclusive mode.
-v Verbose output, on stderr.
EXIT STATUS
Errors detected by halockrun itself, such that the child process was never started, cause halockrun to exit with exit code 99. (This exit
code value can be changed to a different value using the -e option. See OPTIONS.
Otherwise, halockrun exits with the same exit code with which the child exited.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscu |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO
fcntl(2), attributes(5)
Sun Cluster 3.2 10 Apr 2006 halockrun(1M)