Sponsored Content
Operating Systems Linux How to get an Indirect Variable Value..? Post 302403246 by thillai_selvan on Friday 12th of March 2010 12:46:02 AM
Old 03-12-2010
Code:
eval result=\$$var1
echo $result

It will print the word sampath
 

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Compound indirect variable references

Using bash, I'm trying to read a .properties file (name=value pairs), assigning an indirect variable reference for each line in the file. The trick is that a property's value string may contain the name of a property that occurred earlier in the file, and I want the name of the 1st property to... (5 Replies)
Discussion started by: tkrussel
5 Replies

2. Shell Programming and Scripting

Length of an indirect variable

The construct ${#parameter} returns the number of characters in the parameter and ${!parameter} specifies an indirect variable. My question is: How do I combine these two. What I want is ${#!parameter} but this gives an error. Of course I can use: dummy=${!parameter} ${#dummy} but that's a... (0 Replies)
Discussion started by: gone_bush
0 Replies

3. Shell Programming and Scripting

How to define a variable with variable definition is stored in a variable?

Hi all, I have a variable say var1 (output from somewhere, which I can't change)which store something like this: echo $var1 name=fred age=25 address="123 abc" password=pass1234 how can I make the variable $name, $age, $address and $password contain the info? I mean do this in a... (1 Reply)
Discussion started by: freddy1228
1 Replies

4. Shell Programming and Scripting

Indirect variable assignment

Hi I have variable A_B=alpha also var1="A" var2="B" I want to retrieve the value alpha using var1 and var2 , somthing like echo ${${var1}_${var2}} that works. Obviously this is receiving syntax error (6 Replies)
Discussion started by: sumir
6 Replies

5. Shell Programming and Scripting

Does SH support indirect expansion like BASH?

Hello, is there a kind soul who can answer me, does the SH support double substitution known as indirect expansion similar to BASH? The syntax for bash is ${!var}. For instance in bash I can write something like this: VAR="value" REF_VAR="VAR" echo ${!REF_VAR} and get the "value"... (1 Reply)
Discussion started by: dimentiy
1 Replies

6. Shell Programming and Scripting

Indirect Referral Script

I have a file with two columns of numbers (member IDs): 1 1 2 1 3 1 4 2 5 4 6 1 7 5 8 3 9 2 Think of column 1 as the referee and column 2 as the referrer. Is there a good way to backtrack who referred who? I would like an output, for this example here to be: 1 1 2 1 3 1 4 2 1 (2 Replies)
Discussion started by: mdlloyd7
2 Replies

7. Red Hat

How to pass value of pwd as variable in SED to replace variable in a script file

Hi all, Hereby wish to have your advise for below: Main concept is I intend to get current directory of my script file. This script file will be copied to /etc/init.d. A string in this copy will be replaced with current directory value. Below is original script file: ... (6 Replies)
Discussion started by: cielle
6 Replies

8. Shell Programming and Scripting

Indirect variables in Bash

Hello, I've spent hours this morning reading various past forum posts and documentation pages but I can't find exactly what I need. I'm trying to call a variable with a variable in the name without having to make a third variable. For example: path=AB legAB=50 leg$path I want to... (8 Replies)
Discussion started by: DFr0st
8 Replies

9. Shell Programming and Scripting

Pattern match and replace indirect directory reference using sed

Hi, I need a ksh script to replace indirect directory references in an .ini file with a env variable using sed or awk. The .ini file is for example as such: A=.. B=../ C=../.. D=../../ E=../bin F=../../bin G=../../bin/xml H=../../bin/xml/ Need to replace an instance of .. or... (2 Replies)
Discussion started by: andyatit
2 Replies
MYSQL_FREE_RESULT(3)							 1						      MYSQL_FREE_RESULT(3)

mysql_free_result - Free result memory

SYNOPSIS
Warning This extension is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include: omysqli_free_result(3) oAssign the value of NULL to the PDO object, or PDOStatement::closeCursor bool mysql_free_result (resource $result) DESCRIPTION
mysql_free_result(3) will free all memory associated with the result identifier $result. mysql_free_result(3) only needs to be called if you are concerned about how much memory is being used for queries that return large result sets. All associated result memory is automatically freed at the end of the script's execution. o $ result -The result resource that is being evaluated. This result comes from a call to mysql_query(3). Returns TRUE on success or FALSE on failure. If a non-resource is used for the $result, an error of level E_WARNING will be emitted. It's worth noting that mysql_query(3) only returns a resource for SELECT, SHOW, EXPLAIN, and DESCRIBE queries. Example #1 A mysql_free_result(3) example <?php $result = mysql_query("SELECT id,email FROM people WHERE id = '42'"); if (!$result) { echo 'Could not run query: ' . mysql_error(); exit; } /* Use the result, assuming we're done with it afterwards */ $row = mysql_fetch_assoc($result); /* Now we free up the result and continue on with our script */ mysql_free_result($result); echo $row['id']; echo $row['email']; ?> Note For backward compatibility, the following deprecated alias may be used: mysql_freeresult(3) mysql_query(3), is_resource(3). PHP Documentation Group MYSQL_FREE_RESULT(3)
All times are GMT -4. The time now is 01:41 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy