I'm trying to write a script which prints out the users who are loged in.
Printing the output of the "users" command isn't the problem. What I want is to filter out my own username.
users | grep -v (username)
does not work because the whole line in which username exists is suppressed.
If... (5 Replies)
I want to remove everything from a file but the word following the search word.
Example:
crap crap crap crap SearchWord WordToKeep crap crap crap
How would I do this with say awk or grep?
Thank you! (4 Replies)
Still new to bash. Using debian lenny 5, bash version 3.2.39. I'm working on three scripts. I need help completing them.
One script that inputs a plain text file, echo then chop it up into separate whitespace-delimited strings as an output. Not sure how to do this...
for example, the... (4 Replies)
I have to grep a pattern. scenario is like :-
Suppose "/etc/sec/one" is a string, i need to check if this string contains "one" using any utility
something like
if /etc/sec/one | grep ; then
Thanks in advance
Renjesh Raju (3 Replies)
I have a log file that contains several reports with following format.
<Start of delimiter> Report1 header
Report1 header continue
Report1 header continue
Record1 header
Record1 header continue
Record1 header continue
field1 field2 field3 field4
------... (1 Reply)
Hi!!
I have a bit of a task here and filtering/scripting not my strongest. I have to collect info of approx 1100 hdiskpower.so i have appended all the hdisk into a text file and i need it to run the command lscfg -vl to confirm if the drive is symmetrix. here's what i have so far
at... (3 Replies)
Hello,
Is there a way to filerter data from a text file as shown below to a Column
e.g.
hostname nfsmount as two separate column. Currently I could get hostname and the mount is appearing below.. using this script
#! /bin/bash
for i in `cat fqdn.txt`
do
echo "$i ............ " >>... (3 Replies)
I need to filter a file that is composed like that:
>Cluster 0
0 292nt, >last294258;size=1;... *
>Cluster 1
0 292nt, >last111510;size=1;... *
1 290nt, >last136280;size=1;... at -/98.62%
2 292nt, >last217336;size=1;... at +/99.66%
3 292nt, >last280937;size=1;... at -/99.32%
>Cluster 2... (6 Replies)
Discussion started by: pedro88
6 Replies
LEARN ABOUT DEBIAN
io::async::signal
IO::Async::Signal(3pm) User Contributed Perl Documentation IO::Async::Signal(3pm)NAME
"IO::Async::Signal" - event callback on receipt of a POSIX signal
SYNOPSIS
use IO::Async::Signal;
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $signal = IO::Async::Signal->new(
name => "HUP",
on_receipt => sub {
print "I caught SIGHUP
";
},
);
$loop->add( $signal );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Notifier invokes its callback when a particular POSIX signal is received.
Multiple objects can be added to a "Loop" that all watch for the same signal. The callback functions will all be invoked, in no particular
order.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_receipt
Invoked when the signal is received.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
name => STRING
The name of the signal to watch. This should be a bare name like "TERM". Can only be given at construction time.
on_receipt => CODE
CODE reference for the "on_receipt" event.
Once constructed, the "Signal" will need to be added to the "Loop" before it will work.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::Signal(3pm)