how this works?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How mailx -r works?

I'm using Sun Solaris. I used mailx -r "MyEmailId" -s "sub" "toEmailID" from my unix id and it worked. But when i run the same script from other's unix id it works as well. mean any one in my environment can mail to other's email without my knowledge. My questions are How it works and why it...

2. UNIX for Dummies Questions & Answers

How zcat works?

Hi, just i would like to know, how will be the response if you try to read a 40GB compressed file using zcat. a)Uncompress the 40GB file and have it in the disk. use cat to view the steps. b)Use zcat directly to view the compressed file? What are the steps being occurred in step (b)? Where...

3. Shell Programming and Scripting

How does a if works in shell

Hi, I need to compare and get an output for values greater than "X10" (values contain both characters and numbers) using if loop... FOR EG: I want to export values greater than X10, i.e., in-case if the value is X11 and greater than the "if" part to be executed if the value is X9 and...

4. Shell Programming and Scripting

[ask]how does sed -e 's/<[^>]*>//g' works?

I found this command, sed -e 's/<*>//g', will return the content of a line with pattern something like this, <tag1>content</tag1>.. How does this works? What does sed -e 's/<*>//g' actually do? What if I wanted to get content of a line with pattern something like this, content? thanks..

5. UNIX for Advanced & Expert Users

How this works?

I have a program............ #include<stdio.h> #include<unistd.h> main() { if(fork == 0) { printf("Hi every body:p!!!!!!!!!!"); } } This program works with out any error. here fork is not a system call. It just act as a variable.But how it works without declaring it? What data type it...

6. UNIX for Dummies Questions & Answers

>./a.pl works, >a.pl - does not

When I try to execute script, I get message: >aa.pl zsh: command not found: aa.pl but >./aa.pl works OK. What to change in environment to force the former way to work? Thank you, Alex Z

7. Shell Programming and Scripting

Still trying to get a grep -c that works

I am trying to get a count of each line sub runit2 { my ($file1a, $file2a) = @_; my $file1_vala = $file1a->get; my $file2_vala = $file2a->get; open (FILE1a, "$file1_vala") or die; open (FILE2a, "$file2_vala") or die; chomp(my @strings = <FILE2a>); while (1) { foreach $pattern...

8. UNIX for Dummies Questions & Answers

How ls | wc -l works?

ls displays files in tabbed output. Say a directory contains 3 files. ls will list all 3 in one line. So, I expect ls | wc -l to give 1, but it counts the nr of files and gives 3. Can someone explain how this works?

9. Shell Programming and Scripting

Help it works but its to SLOW

I am a novice at shell scripting. I have managed to cobble together a script that does exactly what I need it to do. However I am gathering information from 700+ devices. This script takes hours to complete the task. Is there a better way of doing it than what I have listed here? This script...

10. Linux

How does NORET_TYPE works ?

Hi, I was looking at the panic() code in linux kernel which is defined as: 51 /** 52 * panic - halt the system 53 * @fmt: The text string to print 54 * 55 * Display a message, then perform cleanups. 56 * 57 * This function never returns. 58 */ 59 60 NORET_TYPE void panic(const char *...

LEARN ABOUT PHP

cubrid_fetch_field

CUBRID_FETCH_FIELD(3)							 1						     CUBRID_FETCH_FIELD(3)

cubrid_fetch_field - Get column information from a result and return as an object

SYNOPSIS

       object cubrid_fetch_field (resource  $result, [int  $field_offset])

DESCRIPTION

	This function returns an object with certain properties of the specific column. The properties of the object are:

	      o $name
		-column name

	      o $table
		-name of the table that the column belongs to

	      o $def
		-default value of the column

	      o $max_length
		-maximum length of the column

	      o $not_null
		-1 if the column cannot be NULL

	      o $primary_key
		-1 if the column is a primary key

	      o $unique_key
		-1 if the column is an unique key

	      o $multiple_key
		-1 if the column is a non-unique key

	      o $numeric
		-1 if the column is numeric

	      o $blob
		-1 if the column is a BLOB

	      o $type
		-the type of the column

	      o $unsigned
		-1 if the column is unsigned

	      o $zerofill
		-1 if the column is zero-filled

PARAMETERS

	      o $result
		-$result comes from a call to cubrid_execute(3)

	      o $field_offset
		-  The	numerical field offset. If the field offset is not specified, the next field (that was not yet retrieved by this function)
		is retrieved. The $field_offset starts at 0.

RETURN VALUES

	Object with certain properties of the specific column, when process is successful.

       FALSE on failure.

EXAMPLES

       Example #1

	      cubrid_fetch_field(3) example

	      <?php
	      $conn = cubrid_connect("localhost", 33000, "demodb");
	      $req = cubrid_execute($conn, "SELECT event_code,athlete_code,nation_code,game_date FROM game WHERE host_year=1988 and event_code=20001;");

	      var_dump(cubrid_fetch_row($req));

	      cubrid_field_seek($req, 1);
	      $field = cubrid_fetch_field($req);

	      printf("
--- Field Properties ---
");
	      printf("%-30s %s
", "name:", $field->name);
	      printf("%-30s %s
", "table:", $field->table);
	      printf("%-30s "%s"
", "default value:", $field->def);
	      printf("%-30s %d
", "max length:", $field->max_length);
	      printf("%-30s %d
", "not null:", $field->not_null);
	      printf("%-30s %d
", "primary key:", $field->primary_key);
	      printf("%-30s %d
", "unique key:", $field->unique_key);
	      printf("%-30s %d
", "multiple key:", $field->multiple_key);
	      printf("%-30s %d
", "numeric:", $field->numeric);
	      printf("%-30s %d
", "blob:", $field->blob);
	      printf("%-30s %s
", "type:", $field->type);
	      printf("%-30s %d
", "unsigned:", $field->unsigned);
	      printf("%-30s %d
", "zerofill:", $field->zerofill);

	      cubrid_close_request($req);

	      cubrid_disconnect($conn);
	      ?>

	      The above example will output:

	      array(4) {
		[0]=>
		string(5) "20001"
		[1]=>
		string(5) "16681"
		[2]=>
		string(3) "KOR"
		[3]=>
		string(9) "1988-9-30"
	      }

	      --- Field Properties ---
	      name:			     athlete_code
	      table:			     game
	      default value:		     ""
	      max length:		     0
	      not null: 		     1
	      primary key:		     1
	      unique key:		     1
	      multiple key:		     0
	      numeric:			     1
	      blob:			     0
	      type:			     integer
	      unsigned: 		     0
	      zerofill: 		     0

PHP Documentation Group 												     CUBRID_FETCH_FIELD(3)

Programming