See my other post on sdiff ....
I don't think sdiff is able to do what I want.
The 'comm' command does what I need and works fine as
far as the logic and results.
The problem I'm having is with the output format, it outputs 3 columns of data,
but because of the way it starts each line... (2 Replies)
I need to find deleted records from a file. I compare yesterdays file.old to todays file.new. I need to find the records that were in yesterdays file that are not in todays. My file is fixed field. If I run a "comm -23" obviously what i find is not necesarilly a delete, it could be a change.
... (0 Replies)
Hi,
I have around 14-15 files and i want to sort all the files and then compare. I dont want to sort them and store in a different file and then compare. I want to compare two files at a time. Is there a way we can do this using a single command? (5 Replies)
I have four files, I need to compare these files together.
As such i know "sdiff and comm" commands but these commands compare 2 files together. If I use sdiff command then i have to compare each file with other which will increase the codes.
Please suggest if you know some commands whcih can... (6 Replies)
I'm looking to compare two delimited files:
file1
one|xxx
two|xxx
three|xxx
file2
four|xxx
five|xxx
six|xxx
one|yyy
Where the result is the the file2 row whose first field does NOT appear in file1. I.e., the correct result would be:
result
four|xxx (3 Replies)
Hello , I am trying to get contents which are only present in a.csv ,so using comm -23
cat a.csv | sort > a.csv
cat b.csv | sort > b.csv
comm -23 a.csv b.csv > c.csv.
a.csv
SKU COUNTRY CURRENCY PRICE_LIST_TYPE LIST_PRICE_EFFECTIVE_DATE
TG430ZA ZA USD DF ... (4 Replies)
Hello All,
Iam using below method to sort and compare files. First iam doing sorting and changing the same file and then doing comparing and taking the final result to another file.
sort -o temp.txt file1
mv temp.txt file1
sort -o temp.txt file2
mv temp.txt file2
sort -o temp.txt... (6 Replies)
i have file1 and file2
file1
ABC
XYZ
file2
ABC
so i used the below command
comm -12 file1 file2 > matched
comm -23 file1 file2 > unmatched
I need some other command because this is not working in the current unix version (1 Reply)
Discussion started by: ATWC
1 Replies
LEARN ABOUT PHP
eval
EVAL(3) 1 EVAL(3)eval - Evaluate a string as PHP codeSYNOPSIS
mixed eval (string $code)
DESCRIPTION
Evaluates the given $code as PHP.
Caution
The eval(3) language construct is very dangerous because it allows execution of arbitrary PHP code. Its use thus is discouraged.
If you have carefully verified that there is no other option than to use this construct, pay special attention not to pass any user
provided data into it without properly validating it beforehand.
PARAMETERS
o $code
- Valid PHP code to be evaluated. The code mustn't be wrapped in opening and closing PHP tags, i.e. 'echo "Hi!";' must be passed
instead of '<? echo "Hi!"; >'. It is still possible to leave and reenter PHP mode though using the appropriate PHP tags, e.g.
'echo "In PHP mode!"; ?>In HTML mode!<? echo "Back in PHP mode!";'. Apart from that the passed code must be valid PHP. This
includes that all statements must be properly terminated using a semicolon. 'echo "Hi!"' for example will cause a parse error,
whereas 'echo "Hi!";' will work. A return statement will immediately terminate the evaluation of the code. The code will be exe-
cuted in the scope of the code calling eval(3). Thus any variables defined or changed in the eval(3) call will remain visible
after it terminates.
RETURN VALUES eval(3) returns NULL unless return is called in the evaluated code, in which case the value passed to return is returned. If there is a
parse error in the evaluated code, eval(3) returns FALSE and execution of the following code continues normally. It is not possible to
catch a parse error in eval(3) using set_error_handler(3).
EXAMPLES
Example #1
eval(3) example - simple text merge
<?php
$string = 'cup';
$name = 'coffee';
$str = 'This is a $string with my $name in it.';
echo $str. "
";
eval("$str = "$str";");
echo $str. "
";
?>
The above example will output:
This is a $string with my $name in it.
This is a cup with my coffee in it.
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
Tip
As with anything that outputs its result directly to the browser, the output-control functions can be used to capture the output of
this function, and save it in a string (for example).
Note
In case of a fatal error in the evaluated code, the whole script exits.
SEE ALSO call_user_func(3).
PHP Documentation Group EVAL(3)