Hi
Can someone please tell me what is wrong with this (ksh)..
if + ]] then
echo ${COMP_TEMP}
fi
What i need here is, say if the variable is a 1 or 2 digit number, then execute the if loop. Basically the variable can either be 1-30 or some other character sequence say '?', '&&'... (4 Replies)
Sorry for such a dreadful title, but I'm not sure how to be more descriptive. I'm hoping some of the more gurutastic out there can take a look at a solution I came up with to a problem, and advice if there are better ways to have gone about it.
To make a long story short around 20K pieces of... (2 Replies)
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
I'd like to
1. Check and compare the 10,000 pnt files contains single record from the /$ROOTDIR/scp/inbox/string1 directory against 39 bad pnt files from the /$ROOTDIR/output/tma/pnt/bad/string1 directory based on the fam_id column value start at position 38 to 47 from the record below. Here is... (1 Reply)
Hi,
In the code included below, the string comparision is not working fine. Please help
while (( find_out >= i ))
do
file=`head -$i f.out|tail -1`
dir=`dirname $file`
cd $dir
Status=""
if ; then
Status=`cvs -Q status... (3 Replies)
The string comparison highlighted below is not working fine. Please help:
while read line
do
# Get File name by deleting everything that preceedes and follows Filename as printed in cvs status' output
f_name=`echo $line | sed -e 's/^File://' -e 's/ *Status:.*//' | awk '{print $NF}'`
... (4 Replies)
i am having a file contants as below
my requirement is
for file in `awk -F "," '{print $8,$9}'` <temp.txt
echo "$file"
echo "$file">test.txt
a=`awk -F "," '{print $1}' `<test.txt
b=`awk -F "," '{print $2}' `<test.txt
but script reads , i want both the vales for further... (5 Replies)
hi all,
i have two files:
test1 contains : one two three four five (on separate lines)
test2 contains: one ten nine (on separate lines)
I want to compare two files, test1 against test2. if any word from test1 does not match test2 display it. can someone help me with a while loop on this.
... (4 Replies)
Greetings Experts,
I need to handle the views created over monthly retention tables
for which every new table in YYYYMMDD format, there is
equivalent view created and the older table which might be
dropped, the view over it has to be re-created over a dummy
table so that it doesn't fail.... (2 Replies)
Hello, please assist:
users="test1 test2"
keytest1="abcd"
keytest2="dbcd"
for i in $users
do
echo "$key${i}" > fileout
done
So, my objective is to take the current user (ie test1) in loop and echo its associated keyname (ie keytest1) variable to a file.
The echo... (2 Replies)
Discussion started by: motdman
2 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)