I am looking for a global variable found_flag to be set a value that can be accessed outside the loop anywhere in the bash shell script.
Output: bash -x test.sh
In the RED BOLD output above I am expecting the found_flag to have the value=1 instead of zero.
Can you please suggest a quick way how I can set the value globally so it reflects outside the loop as well ?
Using sub-shells would be my last priority.
Last edited by rbatte1; 10-03-2017 at 07:35 AM..
Reason: Converted QUOTE tags to CODE tags and removed unnecessary FONT formatting (probably pasted in)
We run an RS/6000 SP Frame. One of the nodes running (AIX 5), in the frame, seems to run fine for a few weeks and then will no longer communicate with the outside world. I can not telnet to the server or ping the server.
This is true for both the ethernet and serial connection.
I believe what... (3 Replies)
Hi
I try to copy part of text from one file to another file. My problem is the text in the new file loses all the format.
My code is:
#!/bin/sh
while red line
do
if
then
echo "$line" >> ./new_file
else
break
fi
done < "./old_file"
Is there a way to modify... (3 Replies)
I am searching for a string in a file and then redirecting the contents in another file... however the formatting is not preserved.. Can you please help me on this ... (5 Replies)
Hi Guys,
i have learned today that when you ftp a file with full write permissions (777) to another destination it loses the w options. so a file that was once -rwxrwxrwx(before FTP) is now -rw-r--r-- (after FTP). why does this happen? and is it configurable?
Regards, (8 Replies)
Simple enough problem I think, I just can't seem to get it right.
The below doesn't work as intended, it's just a function defined in a much larger script:
CheckValues() {
for field in \
Group_ID \
Group_Title \
Rule_ID \
Rule_Severity \
... (2 Replies)
I have a group of variables myLINEcnt1 - myLINEcnt10. I'm trying to printout the values using a for loop. I am at the head banging stage since i'm sure it has to be a basic syntax issue that i can't figure out.
For myIPgrp in 1 2 3 4 5 6 7 8 9 10; do
here i want to output the value of... (4 Replies)
Hello guys,
This truly is a newbie question. I'm trying to make a loop to execute simultaneous commands indefinitely while using variable. Here is how my mess looks like (this is just an example):
#!/bin/bash
IP=`shuf -n 1 IP.txt` # I figured this would be easier to select random lines... (4 Replies)
Hello All,
Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....?
I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping
through a string containing some of these "Illegal Characters". Now... (5 Replies)
Hi All,
I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
I have a simple script to log network connectivity to a set of systems.
However, as expected the date appended to the log never changes because the new variable is lost when the loop starts again. Can someone clue me in on how to get around this issue?
#!/bin/bash
LOG=/tmp/netlog... (3 Replies)
Discussion started by: woodson2
3 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)