i have this text file name test.txt which contain :
aaaaa bbb
iiiiiiiiiiiii ccf
ddaaa ddd
and i need a script that can print out the line numbers using a while loop..
so when the script is run..it will have this:
1
2
3
any ideas? :) thanks guys (4 Replies)
Hello all,
Would appreciate if someone can help me out on the following requirement.
INPUT FILE:
--------------------------
TPS REPORT
abc def ghi
jkl mon pqr
stu vrs lll
END OF TPS REPORT
TPS REPORT
field1 field2 field3
field4 field5 field6 (8 Replies)
Hello,
I have two files with tab delimited data. The file will contain details something like below:
FILENAME.A.B.C. 3 5 VALID PROCESSED
I would have a bench mark file. I would be getting new files of the same format. My requirement is to compare a particular field for a... (3 Replies)
Hi All,
I have some thousand files with names like 1.syl, 2.syl, 5.syl etc.
These files contain one sentence each. I want to store all those sentences along with the file ID that is 1, 2, 5 with the sentences they contain.
For example,
1.syl has
this is a test line
2.syl has
... (3 Replies)
Hi experts,
I need to print the first field first then last two fields should come next and then i need to print rest of the fields.
Input :
a1,abc,jsd,fhf,fkk,b1,b2
a2,acb,dfg,ghj,b3,c4
a3,djf,wdjg,fkg,dff,ggk,d4,d5
Expected output:
a1,b1,b2,abc,jsd,fhf,fkk... (6 Replies)
Hi,
i have a scenario were i should compare a few fields from each line then increment a variable based on that.
Example file
989878|8999|Y|0|Y|N|V
989878|8999|Y|0|N|N|V
989878|8999|Y|2344|Y|N|V
i have 3 conditions to check and increment a variable on every line
condition 1 if ( $3... (4 Replies)
Hi
I have a file as below
<field1> <field2> <field3> ... <field_num1> <field_num2>
Trying to sort based on difference of <field_num1> and <field_num2> in desceding order and print all fields.
I tried this and it doesn't sort on the difference field .. Appreciate your help.
cat... (9 Replies)
Hello:
I want to print out the even number of fields plus the first column as row identifiers.
input.txt
ID X1 ID X2 ID X3 ID X4
A 700 A 1200 A 400 A 1300
B 2000 B 1000 B 2000 B 600
C 1400 C 200 C 1000 C 1200
D 1300 D 500 D 600 D 200and the output is:
output.txt
ID X1 X2 X3... (3 Replies)
The below code works great, kindly provided by @Don Cragun, the lines in bold print the current output. Since some of the fields printed can be blank some of the fields are shifted. I can not seem too add . to the blank fields like in the desired output. Basically, if there is nothing in the field... (10 Replies)
Discussion started by: cmccabe
10 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)