I have a variable that is outputting a lot of space.
here has been 45 lines returned ...
how can I remove the spaces between the "been and the 45"
CODE:
fil_len=`wc -l < coshb.txt`
if ; then
cat coshb.txt | more
echo " "
echo "There has been ${fil_len} lines... (4 Replies)
hi
I have say five variable.
I would ask the user which one they want me to print and then print accordingly.
TEST_1='10.2.3.4'
TEST_2='11.2.3.5'
TEST_3='12.2.3.5'
TEST_4='13.2.3.5'
TEST_5='14.2.3.5'
print_var()
{
echo "Accessing var num $1"
echo TEST$1
#??? But How do... (6 Replies)
I am modifying an existing script and it has the following line:
export SomeEnvVar=`echo ${SomeLocalVar}`
Why wouldn't it just read:
export SomeEnvVar=${SomeLocalVar}
Is there some reason to use echo instead of a direct assignment? :confused: (2 Replies)
Hi ,
I have a peculiar problem.
i have an if block like this
if ;
then
echo " todays date is " ${date} >> log_file
echo " file count is " $ count >> log_file
mv filename1 filename 2
else
echo "no files available ">> log_file
fi
the echo statement "no files available " is not... (2 Replies)
Hi,
i want to create an user-friendly script where you are asked for two numbers. i would like that these two number to be separated with "--" for example, but i can't figure out how to do this.
for example
read -p "Insert lowest and highest value: " min ; echo -n "-- "; read max
so... (3 Replies)
hi ,
While running my script individually the variable is working fine. But when i am running the same script from cron job it's displaying nothing. Can any one comment on this. (4 Replies)
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
#!/bin/bash
varA="AAA1"
varB="BBB2"
varC="CCC3"
for proccx in $varA $varB $varC
do
echo "the current name is ????? , the value is $proccx"
echo " "
done
#end of script
I want the output to look something like this:
the current name is varA, the value is AAA1
the current name is... (5 Replies)
Hello,
How can i display the below ... say
echo "Start \n Analyse \n ~/temp/input.txt \nStop"
Now my output should look like below
Start
Analyse
This is from input file
Stop
I tried echo "Start \n Analyse \n $var \nStop where $var = "~/temp/input.txt".. It did not work out..... (3 Replies)
Hi
Newbie here with first post. I've got a shell script (ksh) whereby I run a SQL*Plus script and output the results to a file. I then check the output file in an if statement that looks like this:
if ]; then
export GAPNUM=`awk '{print $4}' $OUTFILE`
if ] then
mailx -s... (10 Replies)
Discussion started by: ltzwoman
10 Replies
LEARN ABOUT DEBIAN
io::async::pid
IO::Async::PID(3pm) User Contributed Perl Documentation IO::Async::PID(3pm)NAME
"IO::Async::PID" - event callback on exit of a child process
SYNOPSIS
use IO::Async::PID;
use POSIX qw( WEXITSTATUS );
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $kid = $loop->fork(
code => sub {
print "Child sleeping..
";
sleep 10;
print "Child exiting
";
return 20;
},
);
print "Child process $kid started
";
my $pid = IO::Async::PID->new(
pid => $kid,
on_exit => sub {
my ( $self, $exitcode ) = @_;
printf "Child process %d exited with status %d
",
$self->pid, WEXITSTATUS($exitcode);
},
);
$loop->add( $pid );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Notifier invokes its callback when a process exits.
For most use cases, a IO::Async::Process object provides more control of setting up the process, connecting filehandles to it, sending data
to and receiving data from it.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_exit $exitcode
Invoked when the watched process exits.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
pid => INT
The process ID to watch. Must be given before the object has been added to the containing "IO::Async::Loop" object.
on_exit => CODE
CODE reference for the "on_exit" event.
Once the "on_exit" continuation has been invoked, the "IO::Async::PID" object is removed from the containing "IO::Async::Loop" object.
METHODS
$process_id = $pid->pid
Returns the underlying process ID
$pid->kill( $signal )
Sends a signal to the process
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::PID(3pm)