01-10-2020
Solved with Inotify tools.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Why would you need to use this in a script?
Why can't you just use print to print out what you want printed in the begining and print for what you want at the end.
So this:
nawk 'BEGIN {print "this is the first line"}
{print $1 $2 $3}
{print $5 $6}
END {print "this is the last line"}'
... (2 Replies)
Discussion started by: llsmr777
2 Replies
2. Shell Programming and Scripting
Hi all,
i am new to scripting. i need to write a code to detect begin and end of word that either begins or ends with t,th,d,dh,s,sh
i have a set of words in a file containg one word per line. let the filename be aaa.txt.
i have an another file bbb.txt which has two lines, just specifying the... (7 Replies)
Discussion started by: blkanth
7 Replies
3. Shell Programming and Scripting
Hi
I have written a script .The script runs properly if i write sql queries .But if i use PLSQL commands of BEGIN if end if , end ,then on running the script the comamds are getting printed on the prompt .
Ex :temp.sql
After connecting to the databse at the sql prompt i type... (1 Reply)
Discussion started by: isha_1
1 Replies
4. UNIX for Dummies Questions & Answers
Hi All ,
I am newbie to linux shell scripting , below are the contents of my log file ,
i want the lines between a begin pattern and a end pattern
for an instance , my begin Pattern is "Transaction Begins for Usr"
and end pattern is "Transaction Ends for Usr" into another file
Sample file... (1 Reply)
Discussion started by: SARAVANANE
1 Replies
5. Programming
Can any one help me out with following problem...
I want to search in a file which has two strings repeat each time(like start and end) i want to search between these two string in C programming.
please help me with the solution.
thanks in advance. (8 Replies)
Discussion started by: uday.sena.m
8 Replies
6. Shell Programming and Scripting
Hi All,
test file
Begin Script Run at Thu Mar 14 09:24:16 PDT 2013
tst_accounts: ws zip: WS_out_20130313.tar.gz dat: test_20130313.dat count: 63574 loaded: xx pre-merge: xx post-merge: xx timestamp: Thu Mar 14 09:30:42 PDT 2013
tst_accounts: ws zip: WS_out_20130313.tar.gz dat: s_20130313.dat... (6 Replies)
Discussion started by: bmk
6 Replies
7. Shell Programming and Scripting
I am trying to understand how to use the END block in awk without much success. I have this script that I found:
gawk '{count++; keyword = $1}
if (count == 3) keyword = "order this"
else print keyword " " k
}
}' << orderfile
Is that the way that the END block should be used? I am... (6 Replies)
Discussion started by: newbie2010
6 Replies
8. Shell Programming and Scripting
I'm new to awk, trying to understand the basics.
I'm trying to reset the counter everytime the program gets a new file to check.
I figured in the BEGIN part it would work, but it doesn't.
#!/bin/awk -f
BEGIN {counter=0}
{
sum=0
for ( i=1; i<=NF;... (1 Reply)
Discussion started by: guitarist684
1 Replies
9. Shell Programming and Scripting
Hello Friends ,
Please help to create script for compare and replace if not matches of set of lines .
* Primary*
Servername Server1
Location R201
Rack 4
*End Primary*
*Secondary*
Server Name Server1
IPAddress 10.24.30.10
Application Apache
*End of Secondary*
Above... (4 Replies)
Discussion started by: rnary
4 Replies
10. Shell Programming and Scripting
Can Someone please explain why BEGIN and END statement is used inside function? How does that help in scripting?
function fileformatting
{
CleanupMask="xXxX"
sed 's/^.//' < ${AllFile} > ${AllFile}.tmp
echo $(wc -l ${AllFile}.tmp)
`awk -v CleanupMask=${CleanupMask} '
BEGIN... (2 Replies)
Discussion started by: later_troy
2 Replies
LEARN ABOUT DEBIAN
file::changenotify::watcher
File::ChangeNotify::Watcher(3pm) User Contributed Perl Documentation File::ChangeNotify::Watcher(3pm)
NAME
File::ChangeNotify::Watcher - Base class for all watchers
VERSION
version 0.22
SYNOPSIS
my $watcher =
File::ChangeNotify->instantiate_watcher
( directories => [ '/my/path', '/my/other' ],
filter => qr/.(?:pm|conf|yml)$/,
exclude => ['t', 'root', qr(/(?!.)[^/]+$)],
);
if ( my @events = $watcher->new_events() ) { ... }
# blocking
while ( my @events = $watcher->wait_for_events() ) { ... }
DESCRIPTION
A "File::ChangeNotify::Watcher" class monitors a directory for changes made to any file. You can provide a regular expression to filter out
files you are not interested in. It handles the addition of new subdirectories by adding them to the watch list.
Note that the actual granularity of what each watcher subclass reports may vary across subclasses. Implementations that hook into some sort
of kernel event interface (Inotify, for example) have much better knowledge of exactly what changes are happening than one implemented
purely in userspace code (like the Default subclass).
By default, events are returned in the form File::ChangeNotify::Event objects, but this can be overridden by providing an "event_class"
attribute to the constructor.
The watcher can operate in a blocking/callback style, or you can simply ask it for a list of new events as needed.
METHODS
File::ChangeNotify::Watcher::Subclass->new(...)
This method creates a new watcher. It accepts the following arguments:
o directories => $path
o directories => @paths
This argument is required. It can be either one or many paths which should be watched for changes.
o filter => qr/.../
This is an optional regular expression that will be used to check if a file is of interest. This filter is only applied to files.
By default, all files are included.
o exclude => [...]
An optional list of paths to exclude. This list can contain either plain strings or regular expressions. If you provide a string it
should contain the complete path to be excluded.
The paths can be either directories or specific files. If the exclusion matches a directory, all of its files and subdirectories are
ignored.
o follow_symlinks => $bool
By default, symlinks are ignored. Set this to true to follow them.
If this symlinks are being followed, symlinks to files and directories will be followed. Directories will be watched, and changes for
directories and files reported.
o sleep_interval => $number
For watchers which call "sleep" to implement the "$watcher->wait_for_events()" method, this argument controls how long it sleeps for.
The value is a number in seconds.
The default is 2 seconds.
o event_class => $class
This can be used to change the class used to report events. By default, this is File::ChangeNotify::Event.
$watcher->wait_for_events()
This method causes the watcher to block until it sees interesting events, and then return them as a list.
Some watcher subclasses may implement blocking as a sleep loop, while others may actually block.
$watcher->new_events()
This method returns a list of any interesting events seen since the last time the watcher checked.
$watcher->sees_all_events()
If this is true, the watcher will report on all events.
Some watchers, like the Default subclass, are not smart enough to track things like a file being created and then immediately deleted, and
can only detect changes between snapshots of the file system.
Other watchers, like the Inotify subclass, see all events that happen and report on them.
AUTHOR
Dave Rolsky <autarch@urth.org>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2012 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)
perl v5.14.2 2012-04-14 File::ChangeNotify::Watcher(3pm)