Hi
we have one function which is used to append data the file in exclusive lock mode in aperl script.
This script is executed by multiple threads at the same time.
accessing the same file.this script runs throught the day.
sometimes the file2.txt size is getting reduced.
for eg from 10 M to 2 M.
query:-
here we did not close the Filehandle ,is it making the script to remove the some contents of file.
Moderator's Comments:
Please use next time code tags for your code and data
When I want to use the editor ,whether vi or textedit,it prompts for entering a key. How can I disable this function?many thanks for offering solutions! (1 Reply)
Hello,
I currently have a system that is running and writing to a log file. Every month I run a rollLogs script that moves this file to a different location and creates a new file in the original location. The service that is writing to this log is running when i run this script and it still... (3 Replies)
I have two perl functions defined, both run a set of shell commands on some somplied data and return hashs of the resulting parsed output from these shell commands.
One works, one doesn't and I can't seem to see why. It's driving me insane :mad:
The working one:
sub getcellstatus {
... (8 Replies)
Hello
We have recently been through an audit of our solaris servers.
All our solaris servers are running version 10.
We have been told to close down all the services and we have closed what we could by using svcadm disable
We only wish to let ssh and the ftp service to run.
Below is a... (3 Replies)
Hi Guru's,
Pardon me for the breach of rules.....
I have very little knowledge about Shell Programming and Scripting hope you guys help me out of this troble
I have very little time hence could not find the right way to direct my queries.
coming to the problem
I need to call a... (2 Replies)
how to use the filehandle stored in a variable without knowing its file association i.e. the filename
code
my $logFH = $connObj->get('logFH');
infoPrint("Variable is of type IO \n") if(UNIVERSAL::isa($logFH, 'IO'));
infoPrint("$logFH\n");
output
== INFO :: Variable is of type... (0 Replies)
Hi,
i have run the below perl code and i am getting an error
Error:readline() on closed filehandle OR at run.pl line 31.
CODE:
===========================================
open OR,$ARGV;
while (<OR>) { # find the batch date
next if length $_ < 3; # BLANK LINE
# last if $. > 120; #... (3 Replies)
Requirement:First i need to unlock the directory which i had a script for it.If i select app1 it should unlock the directory and after chnages in the script once need to lock the directory with lock command
The below highlighed variables in lock and unlock has to be changed according... (2 Replies)
Discussion started by: bhas85
2 Replies
LEARN ABOUT BSD
diff3
DIFF3(1) General Commands Manual DIFF3(1)NAME
diff3 - 3-way differential file comparison
SYNOPSIS
diff3 [ -exEX3 ] file1 file2 file3
DESCRIPTION
Diff3 compares three versions of a file, and publishes disagreeing ranges of text flagged with these codes:
==== all three files differ
====1 file1 is different
====2 file2 is different
====3 file3 is different
The type of change suffered in converting a given range of a given file to some other is indicated in one of these ways:
f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3.
f : n1 , n2 c Text is to be changed in the range line n1 to line n2. If n1 = n2, the range may be abbreviated to n1.
The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of
the lower-numbered file is suppressed.
Under the -e option, diff3 publishes a script for the editor ed that will incorporate into file1 all changes between file2 and file3, i.e.
the changes that normally would be flagged ==== and ====3. Option -x (-3) produces a script to incorporate only changes flagged ====
(====3). The following command will apply the resulting script to `file1'.
(cat script; echo '1,$p') | ed - file1
The -E and -X are similar to -e and -x, respectively, but treat overlapping changes (i.e., changes that would be flagged with ==== in the
normal listing) differently. The overlapping lines from both files will be inserted by the edit script, bracketed by "<<<<<<" and ">>>>>>"
lines.
For example, suppose lines 7-8 are changed in both file1 and file2. Applying the edit script generated by the command
"diff3 -E file1 file2 file3"
to file1 results in the file:
lines 1-6
of file1
<<<<<<< file1
lines 7-8
of file1
=======
lines 7-8
of file3
>>>>>>> file3
rest of file1
The -E option is used by RCS merge(1) to insure that overlapping changes in the merged files are preserved and brought to someone's atten-
tion.
FILES
/tmp/d3?????
/usr/libexec/diff3
SEE ALSO diff(1)BUGS
Text lines that consist of a single `.' will defeat -e.
7th Edition October 21, 1996 DIFF3(1)