12-31-2008
same file being opened by two users at a time
I want to avoid a situation where because two users simultaneously
open a file and modify and save, leaving the original file in mess.
Is there a way in UNIX to warn a user if that particular file is already being
used by another user.
Thanks in advance
10 More Discussions You Might Find Interesting
1. Programming
Hi All,
We can find the maximum of open file descriptors in hold with respect to a process.
As default size was 256 (with getrlimit) and the hard limt was 65536
I tried changing the limit to 1024(with setrlimit)
successfully changed the limit
but still I couldnt have as many open file... (3 Replies)
Discussion started by: matrixmadhan
3 Replies
2. UNIX for Dummies Questions & Answers
New to unix .. Is there a simple command or utility that will tell me when the last time a file was opened/used? (3 Replies)
Discussion started by: sbr262
3 Replies
3. Shell Programming and Scripting
Is there a way to tell for sure if a file currently is opened by any running process?
I have a task to filter a text file which is produced by some long process.
I have no way to communicate with that process, but I have access to a location, where that proces produce an output file.
Need... (3 Replies)
Discussion started by: alex_5161
3 Replies
4. Shell Programming and Scripting
Hello,
What i have to do is make a top 10 list of users sorted by the number of processes opened at a given time. Can anyone help me with finding out for a given moment, for all users how many processes each had opened? (5 Replies)
Discussion started by: gabibyte
5 Replies
5. Shell Programming and Scripting
Hello all,
I have a file that is growing and growing by the action of any process.
How can I find what process is?
Thank you (2 Replies)
Discussion started by: albertogarcia
2 Replies
6. Shell Programming and Scripting
Hi *,
I'm wondering if it possible to know WHO opened or modified a file last?
I know it's possible with some options of find and also ls to get when the file was modified last.
I'm currently supervising a file and have to log all users name who opened or modified it.
Thanx a lot for any... (3 Replies)
Discussion started by: Jabarod
3 Replies
7. Shell Programming and Scripting
I am writing a shell script (runs on HP Unix) which copies files from a source directory to another destination daily. The destination directory always have the files with same name as in the source directory. And daily a new file will be created in the source.
cp command works fine if the file... (1 Reply)
Discussion started by: arunkumar_ms
1 Replies
8. Shell Programming and Scripting
Hi
#Testing for file existence
if ; then
echo 'SCHOOL data is available for processing'
else
echo 'SCHOOL DATA IS NOT AVAILABLE FOR PROCESSING'
:
i wrote a script, where it begins by checking if file exists or not.
If it exists, it truncates the database... (2 Replies)
Discussion started by: rxg
2 Replies
9. Shell Programming and Scripting
HTML Code
archive_history() { HISTORYOLD=${HISTFILE}.archive CURTIME=`date` CURTTY=`tty` IP=$(echo $SSH_CLIENT | awk '{print $1}') if ; then echo "#-${HOSTNAME}-- ${CURBASHDATE} - ${CURTIME} ($CURTTY) ${USER} ${IP}----" >> $HISTORYOLD history... (2 Replies)
Discussion started by: rehantayyab82
2 Replies
10. Shell Programming and Scripting
HTML Code:
archive_history() { HISTORYOLD=${HISTFILE}.archive CURTIME=`date` CURTTY=`tty` IP=$(echo $SSH_CLIENT | awk '{print $1}') if ; then echo "#-${HOSTNAME}-- ${CURBASHDATE} - ${CURTIME} ($CURTTY) ${USER} ${IP}----" >> $HISTORYOLD history... (0 Replies)
Discussion started by: rehantayyab82
0 Replies
TM(1) General Commands Manual TM(1)
NAME
tm - meditate
SYNOPSIS
tm [-number] [time]
DESCRIPTION
Tm causes UNIX to go into a state in which all current activities are suspended for time minutes (default is 20). At the beginning of this
period, tm generates a set of number (default 3) transcendental numbers. Then it prints a two- to six-character nonsense syllable (mantra)
on every logged-in terminal (a different syllable on each terminal). For the remainder of the time interval, it repeats these numbers to
itself, in random order, binary digit by binary digit (memory permitting), while simultaneously contemplating its kernel.
It is suggested that users utilize the time thus provided to do some meditating themselves. One possibility is to close one's eyes,
attempt to shut out one's surroundings, and concentrate on the mantra supplied by tm.
At the end of the time interval, UNIX returns to the suspended activities, refreshed and reinvigorated. Hopefully, so do the users.
FILES
Tm does not use any files, in an attempt to isolate itself from external influences and distractions.
DIAGNOSTICS
If disturbed for any reason during the interval of meditation, tm locks the keyboard on every terminal, prints an unprintable expletive,
and unlocks the keyboard. Subsequent UNIX operation may be marked by an unusual number of lost or scrambled files and dropped lines.
BUGS
If number is greater than 32,767 (decimal), tm appears to generate rational numbers for the entire time interval, after which the behavior
of the system may be completely irrational (i.e., transcendental).
WARNING
Attempts to use flog(1) on tm are invariably counterproductive.
TM(1)