08-07-2008
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
I have the following requirement. In a directory i get files from external source. I at regular intervals check that directory for any incoming files.
The file name is underscore delimited.
Such as:
aaa_bbb_ccc_ddd_eee_fff.dat
I am using awk and and splitting the file name. ... (4 Replies)
Discussion started by: satishpv_2002
4 Replies
2. Shell Programming and Scripting
Hi Jim,
The following script is in working state. But i m having one more problem with awk cmd. Could you tell me how to use any variable inside awk or how to take any variable value outside awk.
My problem is i want to maintain one property file in which i am declaring variable value into that... (12 Replies)
Discussion started by: Ganesh Khandare
12 Replies
3. Shell Programming and Scripting
Hi Gurus,
I need a suggestion, please help. I have a input file as below :
abc.txt :
*
xxxx: 00000
xxxxx: 00000
xxxx: RANDOM
xxx: RANDOM
**************************xxxxxxx***
* abc
******************************
abc:
abc: ... (3 Replies)
Discussion started by: arunshankar.c
3 Replies
4. Shell Programming and Scripting
here is what i have so far
delim=`cat $HOME/tmp/interchange_hold | head -1 | cut -b4`
cat $HOME/tmp/rawfile_hold | (
while read line
se_check=`echo $line | awk -F: -v awkvar="$delim" '{ print $1}'`
delim will hold the 4th char of a file.
Lets say that char is a *
the line im... (2 Replies)
Discussion started by: blesjt02
2 Replies
5. UNIX for Dummies Questions & Answers
Hi Guys,
Can anyone of you please tell me how to use a variable inside a awk command.
For ex - if am printing the third column with respect to a pattern with delimiter ~
awk -F~ '$3=="pattern"' <file name> - This works,
Now here I have a set of patterns in a file and I want to put it in... (1 Reply)
Discussion started by: abhisheksunkari
1 Replies
6. Shell Programming and Scripting
below is the output xml string from some other command and i will be parsing it using awk
cat /tmp/alerts.xml
<Alert id="10102" name="APP-DS-ds_ha-140018-componentFailure-S" alertDefinitionId="13982" resourceId="11427" ctime="1359453507621" fixed="false" reason="If Event/Log Level(ANY) and... (2 Replies)
Discussion started by: vivek d r
2 Replies
7. Shell Programming and Scripting
Have a small doubt .
While using an iterator , i need to take the fields as seen as below .
But the Iterator is not been displayed . Can you please help with this .
Code:
ITERATOR=0COUNT=`cat test.txt`echo "$COUNT" while do echo $ITERATOR echo "$COUNT" awk... (3 Replies)
Discussion started by: Ravi_Teja
3 Replies
8. Shell Programming and Scripting
I'm working on a script in which gives certain details in its output depending on user-specified options. So, what I'd like to do is something like:
if
then
awkcmd='some_awk_command'
else
awkcmd='some_other_awk_command'
fi
Then, later in the script, we'd do something like:
... (5 Replies)
Discussion started by: treesloth
5 Replies
9. Shell Programming and Scripting
Hi All,
I am trying to find a word from a file in loop.
while read i; do
DB_Name=$i
awk '{for(i=1;i<=NF;i++)if($i~/$DB_Name/)print $(i)}' $BTEQ_NAME > $DB_Name_TableList.txt
done <Param.txt
here Param.txt contents data as
ODS_TARGT_RECV
FIN_TARGT... (7 Replies)
Discussion started by: Shilpi Gupta
7 Replies
10. Shell Programming and Scripting
Hello All,
I am trying to run a script to extract data from the file. The format of the file is as below:
filename: sample.log
12345| ABCD
23456| GKHY
33454| ABCD
98765| TTRRI want to run a command in AWK as show below
extract.sh
#!/bin/bash
echo... (2 Replies)
Discussion started by: chetanojha
2 Replies
EVAL(3) 1 EVAL(3)
eval - Evaluate a string as PHP code
SYNOPSIS
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)