07-19-2009
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
i don't get what's wrong here. i'm writing a shell script that takes 1 argument (a number) from the command-line, but it's throwing an error:
Syntax error: Bad for loop variable
doesn't make much sense
for (( i = 1; i = ${1}; i++ )) # error points to this line everytime
do
echo... (9 Replies)
Discussion started by: visitorQ
9 Replies
2. Shell Programming and Scripting
Hi,
I have the following script (compile_mercury) and I get this error: I have no idea why...and I have written this script completely in linux (bash) and not in windows.
****************
./compile_mercury: line 136: syntax error near unexpected token `done'
./compile_mercury: line 136:... (1 Reply)
Discussion started by: habzone2007
1 Replies
3. Shell Programming and Scripting
Hi guys,
I'm trying to loop through a number of files that is set by whatever is in a field.
eg.
The idea is to split FILELIST down into fields, it could contain 1 - 999 fields and it's bar delimited.
I thought simple, count the number of fields in the field and then loop... (1 Reply)
Discussion started by: Peejay
1 Replies
4. Shell Programming and Scripting
I'd like a shell-script syntax checker that can detect at least the following errors, and more:
1. Variable $VAR used but VAR has not been defined.
2. Variable VAR defined but never used.
3. Use of unquoted variables which might break external commands e.g. SOMETHING in: value=`grep $SOMETHING... (5 Replies)
Discussion started by: garethr
5 Replies
5. Shell Programming and Scripting
hi,
I have to use for loop in my script. The below code is providing an output,
1,2,3,4,5..n. But i need to display the values one by one eg: it has to display the first value then exit from the loop and display the second value then exit till n(last value).
for i in 1,2,3,4,5..n
do ... (2 Replies)
Discussion started by: sreelu
2 Replies
6. UNIX for Dummies Questions & Answers
%%%%% (3 Replies)
Discussion started by: lucasvs
3 Replies
7. Shell Programming and Scripting
I am trying to run a menu option though IF loops. I keep getting errors not allowed the menu to be processed correctly. Currently it will accept the first 2 statements but then crash on the 3rd. The 2nd and 3rd have the same syntax, so I do not understand why it breaks.
#!/bin/bash
while... (4 Replies)
Discussion started by: Ironguru
4 Replies
8. UNIX for Dummies Questions & Answers
I am using simple for loop, but getting syntax error when I run the code
code
#!/bin/ksh
pls enter number
read n
for(i=1; i<=n; i++)
do
echo $i
done
syntax error
+ pls enter number
+ read n (5 Replies)
Discussion started by: stew
5 Replies
9. Shell Programming and Scripting
I have a shell script which has this while loop line
"while read tblName xx; do..."
I understand how while loop works but don't know what does this xx stands for? (1 Reply)
Discussion started by: later_troy
1 Replies
10. Shell Programming and Scripting
I like to “optimize” / make more like a real program my bash script by replacing repetitious code which utilizes positional parameters.
I am having two issues I cannot solve and would appreciate some assistance with resolving them.
a) how to modify the whiptail checklist... (3 Replies)
Discussion started by: annacreek
3 Replies
LEARN ABOUT DEBIAN
io::async::loop::glib
IO::Async::Loop::Glib(3pm) User Contributed Perl Documentation IO::Async::Loop::Glib(3pm)
NAME
"IO::Async::Loop::Glib" - use "IO::Async" with Glib or GTK
SYNOPSIS
use IO::Async::Loop::Glib;
my $loop = IO::Async::Loop::Glib->new();
$loop->add( ... );
...
# Rest of GLib/Gtk program that uses GLib
Glib::MainLoop->new->run();
Or
$loop->loop_forever();
Or
while(1) {
$loop->loop_once();
}
DESCRIPTION
This subclass of "IO::Async::Loop" uses the "Glib::MainLoop" to perform read-ready and write-ready tests.
The appropriate "Glib::IO" sources are added or removed from the "Glib::MainLoop" when notifiers are added or removed from the set, or when
they change their "want_writeready" status. The callbacks are called automatically by Glib itself; no special methods on this loop object
are required.
CONSTRUCTOR
$loop = IO::Async::Loop::Glib->new()
This function returns a new instance of a "IO::Async::Loop::Glib" object. It takes no special arguments.
METHODS
There are no special methods in this subclass, other than those provided by the "IO::Async::Loop" base class.
$count = $loop->loop_once( $timeout )
This method calls the "iteration()" method on the underlying "Glib::MainContext". If a timeout value is supplied, then a Glib timeout will
be installed, to interrupt the loop at that time. If Glib indicates that any callbacks were fired, then this method will return 1 (however,
it does not mean that any "IO::Async" callbacks were invoked, as there may be other parts of code sharing the Glib main context. Otherwise,
it will return 0.
SEE ALSO
o Glib - Perl wrappers for the GLib utility and Object libraries
o Gtk2 - Perl interface to the 2.x series of the Gimp Toolkit library
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2013-03-01 IO::Async::Loop::Glib(3pm)