Unfortunately, you do not mention the shell that you are using. In bash, this should do:
If you need the indices start with 0, rearrange the assignments in the loop.
Hi All,
I have a table with 10 columns. Some columns(2nd,4th,5th,7th,8th and 10th) are Not Null columns. I'll get a tab-delimited file and want to check col by col and generate seperate error code for each col eg:102 if 2nd col value is NULL and 104 if 4th col value is NULL so on... I am a... (7 Replies)
Need help on making a loop script base on what is inside a file...
File to read: List.txt
List.txt contains below w/c are file name as well:
SAMPLEa
SAMPLEb
SAMPLEc
SAMPLEd
SAMPLEe
SAMPLEf
.
.
.
Want to make a loop that will manipulate those that are inside the file.txt w/c are... (3 Replies)
To make it clearer:
I have a file, List.txt
List.txt contains: (these are actually splitted files w/c I got from ls command and dump them to the List.txt file)
SAMPLEa
SAMPLEb
SAMPLEc
SAMPLEd
SAMPLEe
SAMPLEf
.
.
.
.
.
And I want to rename these files to have a .dat extension.... (3 Replies)
Hi,
I have file as below:
5 6 7
4 8 9
3 5 6
output needs to be another file with 4th column as $1+$2 and 5th column as $3+$4.
sample output file
5 6 7 11 18
4 8 9 12 21
3 5 6 8 14
Anybody have answer
Thanks in advance (3 Replies)
Hi Everybody,
I am just new to UNIX as well as to this forum. I have a text file with 10,000 coloumns and each coloumn contains values separated by space. I want to separate them into new coloumns..the file is something like this
as ad af 1 A
as ad af 1 D
...
...
1 and A are in one... (7 Replies)
I have some version problem to use this code in my server
while read line; do
read -A array <<<$line <---------- the server dont read <<<
n=${#array}
for ((i=1;i<$n;i++)); do
print "${array}"
done
func=${array}
data1=${array}
data2=${array}
... (1 Reply)
Hi,
I need to read a file into array and print them in a loop:-
1st file :-cat a.txt
RC1
RC2
RC3
RC4
My Program:-
#!/bin/ksh
index=0
while
do
read cnt<a.txt
print "cnt value is ${cnt}
index=`expr $index + 1`
done
Code tags for code, please. (5 Replies)
Hi,
I need help to split a long text in a column which is separated by ; and i need to print them out in multiple columns. My input file is tab-delimited and has 11 columns as below:-
aRg02004 21452 asdfwf 21452 21452 4.6e-29 5e-29 -1 3 50 ffg|GGD|9009 14101.10 High class -node. ; ffg|GGD|969... (3 Replies)
Hello,
I am very now to this, hope you can help,
I am looking into editing a file in Solaris, with dinamic collums (lenght varies) and I need 2 things to be made, the fist is to filter the first column and third column from the file bellow file.txt, and create a new file with the 2 filtered... (8 Replies)
Hello,
I have some tab delimited text files with a three header rows. The headers look like, (sorry the tabs look so messy).
index group Name input input input input input input input input input input input... (9 Replies)
Discussion started by: LMHmedchem
9 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)