Kindly help on below script:
If i has some file name then it runs properly but if i has nothing ( blank value) then it throws an error. I dont exactly remember right now but error seems like: "test:..parameter..."
To me it looks like if variablei does not have any file name if statements gets fail.
Could you please suggest me the right way to check if i has some file name and existence of file.
Thanks in advance
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Guys
Iam trying to do a script to find what files are missing in particular directory.I came up with this
for i in file6 file7 file8 file9 file10 file11 file12; do
if ; then
echo " $file not in /mnt/Server/base/i386/ "
else
echo " $file ... "
fi
done
Iam trying to print... (2 Replies)
I'm sure this can't be too tough, but.
I want to check the existance of file(s) by extension. There may be 0,1,N files. If any files exist, then remove them.
Thanks for any insight. (3 Replies)
Hello, I have two files ..
1. inventory_i.txt
2. inventory_b.txt
I want to check if these two files exists. If exists, then do the process, otherwise, quite...
if ; then
echo "exists"
else
echo " does not exists"
fi
The above logic is not working... It is always, displaying Does... (2 Replies)
I have a list of files and their directories, starting from a particular location. e.g.
temp/new/a.c
temp/new/b.c
temp/old/a.c
temp/old/older/b.c
etc.
Now I want to check the existence of all these files in the respective directories .
I am trying something like
cat "fileList" |... (4 Replies)
Hi all,
I have the following code:
if ; then echo 'folder not exist'; else echo 'folder exist'; fi
The "testing" folder is not exist in /home/batch , but thhe result is 'folder exist'. It seems that the code cannot detect that the folder "testing" not exist.
ANybody know the... (1 Reply)
Thanks in advance to anyone that can help me answer this:
I'm trying to write an if statement that will run test -f on whether a file exists on another server and if it does not then report that negative outcome to a log file.
I'm thinking it should look something like this:
if ; then
rcp... (5 Replies)
I am trying to execute the following command to check the existance of a file (which has a date timestamp on it). If there are more than one file, then also it should give me 'success' result.
if
then
<do some work>
else
<no files>
fi
Since there are more than one... (18 Replies)
Hi,
I need to find out if a particular file exists and i am using if with -e option.
Scenarion is like
There is a possibility of two files having nomaincluture like below
First file = abc20101028.somthing
Second File = abc20101028.somthing.done
I need to check abc20101028.somthing... (1 Reply)
Hi,
I am totaly new to create a script . Please help.
I have file name retrived from SAP table into a internal table .
Like :-
/home/td_8d02_int_data_IPCL/ILLUSTRATIONS/CGM/l_pc_112138_01_0_01_00.cgm
/home/td_8d02_int_data_IPC-L/ILLUSTRATIONS/CMP/l_pc_112138_01_0_01_00.cmp
Objective... (1 Reply)
HI Guys,
I have some 8 files with different name and extensions. I need to check if they are present in a specific folder or not and also want that script to show me which all are not present. I can write if condition for each file but from a developer perspective , i feel that is not a good... (3 Replies)
Discussion started by: shankarpanda003
3 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)