07-01-2013
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I need to write a function that will work in sh/ksh shell that will test to see if a file has already been opened for writting by another user
has anyone written something like this? (3 Replies)
Discussion started by: johnsonbryce
3 Replies
2. Virtualization and Cloud Computing
timbass
Sat, 28 Jul 2007 10:07:53 +0000
Originally posted in Yahoo! CEP-Interest
Here is my follow-up note on posets (partially ordered sets) and tosets (totally or linearly ordered sets) as background set theory for event processing, and in particular CEP and ESP.
In my last note, we... (0 Replies)
Discussion started by: Linux Bot
0 Replies
3. UNIX and Linux Applications
We are a tool vendor and one of our users is getting this error.
The user is using several macrovision(FLEXLM) license enabled products including ours.
(lmgrd) Can't open /usr/tmp/.flexlm/lmgrdl.4081, errno: 24
At this time, it stops checking out licenses, and will not
respond to query's.... (2 Replies)
Discussion started by: return_user
2 Replies
4. Programming
Hey, Can I assume that for certain function calls, errno can never be set to a certain value.
More specifically, can I assume that for if the stat function call fails, the errno can never be or "No space left on device."
I am assuming that a read function cannot fail because of no space... (5 Replies)
Discussion started by: the_learner
5 Replies
5. UNIX and Linux Applications
To begin:
I use Linux
The Problem:
I need bcp functionality for scripts. Perl modules, such as Sybase:xfer, require ctlib which comes with Sybase Open Client. Talking with Sybase sales
reps is an exercise in futility and hate. They know absolutely nothing about their own products and will... (0 Replies)
Discussion started by: Bubnoff
0 Replies
6. Programming
If a process already has the entire file locked for read and write using newstruct.l_type = F_WRLCK; what would happen if another process would try to open it in read only mode using open(filename, O_RDONLY); ?
I want to check if the file exists and I want it to work even if another process has... (4 Replies)
Discussion started by: cyler
4 Replies
7. Shell Programming and Scripting
Help Please perl Gurus,
I am trying to add ungrouped passengers in a group and I creating a script however it fails on first step only I tried all the options it returns following error.
syntax error at junki line 4, near "open "
Execution of junki aborted due to compilation errors. ... (2 Replies)
Discussion started by: dynamax
2 Replies
8. Shell Programming and Scripting
Hello all, just a quick little part of code i'm writing to check if the file i'm writing too in my automatic process is not being written too manually.
#!/bin/bash
FUSER=$(/sbin/fuser -s /toto.tmp >/dev/null 2>&1)
LSOF=$(/usr/sbin/lsof | grep -q "toto.tmp")
PGREP=$(pgrep -f "toto.tmp" >... (6 Replies)
Discussion started by: maverick72
6 Replies
9. HP-UX
Hi,
Unable to make tape backup, please help.
/opt/ignite/bin/make_tape_recovery -a /dev/rmt/?mn -I -v -m tar -x inc_entire=vg00
* Creating local directories for configuration files and archive.
======= 04/25/16 16:28:08 IST Started /opt/ignite/bin/make_tape_recovery.
(Mon... (4 Replies)
Discussion started by: anuragr
4 Replies
LEARN ABOUT MOJAVE
flopen
FLOPEN(3) BSD Library Functions Manual FLOPEN(3)
NAME
flopen -- reliably open and lock a file
LIBRARY
Utility functions from BSD systems (libbsd, -lbsd)
SYNOPSIS
#include <sys/fcntl.h>
#include <bsd/libutil.h>
int
flopen(const char *path, int flags);
int
flopen(const char *path, int flags, mode_t mode);
DESCRIPTION
The flopen() function opens or creates a file and acquires an exclusive lock on it. It is essentially equivalent with calling open() with
the same parameters followed by flock() with an operation argument of LOCK_EX, except that flopen() will attempt to detect and handle races
that may occur between opening / creating the file and locking it. Thus, it is well suited for opening lock files, PID files, spool files,
mailboxes and other kinds of files which are used for synchronization between processes.
If flags includes O_NONBLOCK and the file is already locked, flopen() will fail and set errno to EWOULDBLOCK.
As with open(), the additional mode argument is required if flags includes O_CREAT.
RETURN VALUES
If successful, flopen() returns a valid file descriptor. Otherwise, it returns -1, and sets errno as described in flock(2) and open(2).
SEE ALSO
errno(2), flock(2), open(2)
AUTHORS
The flopen function and this manual page were written by Dag-Erling Smorgrav <des@FreeBSD.org>.
BSD
June 6, 2009 BSD