11-19-2009
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi Guys,
Requirement: Want to compare two files, if the the content of both files is same then show "Good result" else Show "Bad Result"
I am using the following logic
if( cmp -s a b = 0 )
then
echo "Good result"
else echo "Bad result"
exit 0
fi
But this is... (1 Reply)
Discussion started by: abhishek3598
1 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I need to compare 2 files based on the first field in each file and output the differences to a new file.
example File 1 and File 2 both have first field as Number ie:
File 1
1252652355
1859553322
1778899562
File 2
1252652355
1859553322
So I would expect File 3 to... (2 Replies)
Discussion started by: Lagre1
2 Replies
3. Shell Programming and Scripting
Hi Friends,
I have a requirement like i have two files in diffrent locations. i want to compare these two files, if both the files are same i want to return "0" else return 1.
Please help me on this.
Thanks
sreenu. (3 Replies)
Discussion started by: sreenu80
3 Replies
4. UNIX for Advanced & Expert Users
I have two files which have primary key(s) for each row.
I need to compare both the files and produce the output in the following format.
Primary key(s),file1 value,file2 value.
Both the input files will be comma separated files.
I have accomplished this using perl, but it is... (6 Replies)
Discussion started by: gpsridhar
6 Replies
5. Shell Programming and Scripting
Hi Gurus
I need your kind help sorting the below query
I have two text files
File1.txt
ID Name Address
101 Srinath BBB
102 Sidharth CCC
File2.txt
ID Name Address
102 Siddharth DDD
103 Suman EEE
Now the requirement is if the second file has... (0 Replies)
Discussion started by: Pratik4891
0 Replies
6. Shell Programming and Scripting
Hi,
I have two files
File1 Contents:
abc
dcf
sdc
File2 Contents:
dcf
sdc
erg
Now my program should return the contents existing in File1 but not in File2. In this case output shoud be "abc" as abc is not available in File 2. It should not return "erg" by saying it is... (4 Replies)
Discussion started by: forums123456
4 Replies
7. UNIX for Dummies Questions & Answers
Hello,
I have a dat file nctilllist.dat which will be present in the directory path
"/usr/lpp/web-data/mfg/nct/file-data/nctilllist.dat"
nctillist.dat will have reference to files like DP100001.jpg,DP10002.PDF,DP100003.doc
on the path /usr/lpp/web-data/mfg/nct/file-data will have... (12 Replies)
Discussion started by: gayathrivm
12 Replies
8. Shell Programming and Scripting
I have a file containing the below data obtained after running a diff command
> abc 10
< abc 15
> xyz 02
<xyz 05
.....
Does anyone know how i can obtain output like :
previous value of abc is 10 and present value is 15
similarly for all the comparisons in the text file (10 Replies)
Discussion started by: amithpatrick1
10 Replies
9. Shell Programming and Scripting
I have requirement to compare two files in unix. Below are the sample files.
File1:
cn=test123,cn=bobgroup,dc=ind,dc=com
cn=bob123,cn=bobgroup,dc=ind,dc=com
cn=test13,cn=bobgroup,dc=ind,dc=com
cn=est12,cn=bobgroup,dc=ind,dc=com
cn=st123,cn=bobgroup,dc=ind,dc=com
File2... (1 Reply)
Discussion started by: babu92
1 Replies
10. Shell Programming and Scripting
Hi,
I have below query related to multiple file comparing
I have four files i want to compare it and contents of one file will not be presence in 3other files and if any content found then it will print the execution.
Can you please help me how to achieve it. (2 Replies)
Discussion started by: soumyamihp
2 Replies
LEARN ABOUT PHP
debug_zval_dump
DEBUG_ZVAL_DUMP(3) 1 DEBUG_ZVAL_DUMP(3)
debug_zval_dump - Dumps a string representation of an internal zend value to output
SYNOPSIS
void debug_zval_dump (mixed $variable, [mixed $...])
DESCRIPTION
Dumps a string representation of an internal zend value to output.
PARAMETERS
o $variable
- The variable being evaluated.
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
debug_zval_dump(3) example
<?php
$var1 = 'Hello World';
$var2 = '';
$var2 =& $var1;
debug_zval_dump(&$var1);
?>
The above example will output:
&string(11) "Hello World" refcount(3)
Note
Beware the refcount
The refcount value returned by this function is non-obvious in certain circumstances. For example, a developer might expect the
above example to indicate a refcount of 2. The third reference is created when actually calling debug_zval_dump(3).
This behavior is further compounded when a variable is not passed to debug_zval_dump(3) by reference. To illustrate, consider a
slightly modified version of the above example:
Example #2
<?php
$var1 = 'Hello World';
$var2 = '';
$var2 =& $var1;
debug_zval_dump($var1); // not passed by reference, this time
?>
The above example will output:
string(11) "Hello World" refcount(1)
Why refcount(1)? Because a copy of $var1 is being made, when the function is called.
This function becomes even more confusing when a variable with a refcount of 1 is passed (by copy/value):
Example #3
<?php
$var1 = 'Hello World';
debug_zval_dump($var1);
?>
The above example will output:
string(11) "Hello World" refcount(2)
A refcount of 2, here, is extremely non-obvious. Especially considering the above examples. So what's happening?
When a variable has a single reference (as did $var1 before it was used as an argument to debug_zval_dump(3)), PHP's engine opti-
mizes the manner in which it is passed to a function. Internally, PHP treats $var1 like a reference (in that the refcount is
increased for the scope of this function), with the caveat that if the passed reference happens to be written to, a copy is made,
but only at the moment of writing. This is known as "copy on write."
So, if debug_zval_dump(3) happened to write to its sole parameter (and it doesn't), then a copy would be made. Until then, the
parameter remains a reference, causing the refcount to be incremented to 2 for the scope of the function call.
SEE ALSO
var_dump(3), debug_backtrace(3), References Explained, References Explained (by Derick Rethans).
PHP Documentation Group DEBUG_ZVAL_DUMP(3)