Problem Overview: We have a scheduler that prints report on any of the network printer.
Problem Statement: We need to find a UNIX command that picks up either A4, legal or letter size paper form the printer.
I found out a command but it's not working on our environment.
... (3 Replies)
Hi ,
I have a similar problem.
Please can anyone help me with a shell script or a perl.
I have a flat file like this
fruit country
apple germany
apple india
banana pakistan
banana saudi
mango india
I want to get a output like
fruit country
apple ... (7 Replies)
I have high values (such as ÿÿÿÿ) in a text file contained in an Unix AIX server. I need to identify all the records
which are having these high values and also get the position/column number in the record structure if possible. Is there
any Unix command by which this can be done to :
1.... (5 Replies)
Hi,
(Oracle, AIX)
I have googled this and searched this forum, however I haven't had much luck with an answer and have tried several different things.
Basically I have a SQL select statement which generates a whole load of UPDATE statements, I want to run the select statement via... (13 Replies)
I have a huge file and I want to select first 10 charcters and last 2 characters of everyline and than will filter the unique line.
I know, it must be easy bt I am new to unix scripting:)
Ex.
I have file as below and need to e3kbaird and last 2 characters. and than unique records.
... (3 Replies)
I want to compare 4 edge-lists to basically see if an edge is present in all 4 networks. The issue is that an edge A-B in one file can be present as B-A in another file.
Example:
Input 1: net1.txt
A B 0.1
C D 0.65
D E 0.9
E A 0.7
Input 2: net2.txt
A Z 0.1
C D 0.65
E D 0.9
E A... (1 Reply)
Hi All,
I am trying to select the rows in a fixed width file based on values in the columns.
I want to select only the rows if column position 3-4 has the value AB
I am using cut command to get the column values. Is it possible to check if cut -c3-4 = AB is true then select only that... (2 Replies)
Hi All,
we have a requirement to split a content in a text file every 5 rows and write in a new file .
conditions:
if 5th line falls between center of the statement . it should look upto after ";"
files are below format:
1 UPDATE TABLE TEST1 SET VALUE ='AFDASDFAS'
2 WHERE... (3 Replies)
Discussion started by: KK230689
3 Replies
LEARN ABOUT DEBIAN
dispatch_apply
dispatch_apply(3) BSD Library Functions Manual dispatch_apply(3)NAME
dispatch_apply -- schedule blocks for iterative execution
SYNOPSIS
#include <dispatch/dispatch.h>
void
dispatch_apply(size_t iterations, dispatch_queue_t queue, void (^block)(size_t));
void
dispatch_apply_f(size_t iterations, dispatch_queue_t queue, void *context, void (*function)(void *, size_t));
DESCRIPTION
The dispatch_apply() function provides data-level concurrency through a "for (;;)" loop like primitive:
dispatch_queue_t the_queue = dispatch_get_concurrent_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT);
size_t iterations = 10;
// 'idx' is zero indexed, just like:
// for (idx = 0; idx < iterations; idx++)
dispatch_apply(iterations, the_queue, ^(size_t idx) {
printf("%zu
", idx);
});
Like a "for (;;)" loop, the dispatch_apply() function is synchronous. If asynchronous behavior is desired, please wrap the call to
dispatch_apply() with a call to dispatch_async() against another queue.
Sometimes, when the block passed to dispatch_apply() is simple, the use of striding can tune performance. Calculating the optimal stride is
best left to experimentation. Start with a stride of one and work upwards until the desired performance is achieved (perhaps using a power
of two search):
#define STRIDE 3
dispatch_apply(count / STRIDE, queue, ^(size_t idx) {
size_t j = idx * STRIDE;
size_t j_stop = j + STRIDE;
do {
printf("%zu
", j++);
} while (j < j_stop);
});
size_t i;
for (i = count - (count % STRIDE); i < count; i++) {
printf("%zu
", i);
}
FUNDAMENTALS
Conceptually, dispatch_apply() is a convenient wrapper around dispatch_async() and a semaphore to wait for completion. In practice, the dis-
patch library optimizes this function.
The dispatch_apply() function is a wrapper around dispatch_apply_f().
SEE ALSO dispatch(3), dispatch_async(3), dispatch_queue_create(3), dispatch_semaphore_create(3)Darwin May 1, 2009 Darwin