[ c o d e ]
for a in something; do
echo something else
done
[ / c o d e ]
If you now remove all blanks in [ c o d e ] and [ / c o d e ] the forum will be able to substitute it as bulletin board tags and you will have the following:
Im Sorry to bother you guys butim totally new to Unix, so pls help me out if you can. This could be a silly question.
I wanna run the command "ps" in script, but how should I be able to do so? Actually I have made a menu for the user to choose from...for example
1. Show all processes
2.... (1 Reply)
Hello ;
I have a script myscript.sh. If I type at prompt
myscript.sh
I will receive
ksh: myscript.sh: not found
but if I type
./myscript.sh
it works .
What should I do to be able to run myscript just typing
myscript.sh
Many thanks before. (1 Reply)
I need to execute a shell script kept in unix machine from windows. User id, password area available.
For eg.
There's a shell script wich moves all the logs kept in my home directory to a directory named LOGS.
Now i need to get this done through windows; either using a batch file, or java... (4 Replies)
Hi,
I have a script get_DB_var.ksh which do a data base call and get some variables as below:
sqlplus -silent $user/$pass@dbname <<END
select col1,
col2,
col3
from table_name where col4=$1;
exit;
END
Now I want to access all these variables i.e.... (9 Replies)
Dear All,
I have a script on my USB and I want to execute it on set of files when I connect via ssh on the server ...
I'm not able to define the path of the script located in the USB ... how can I use this script without copying/moving it into the directory I'm working on in the ssh mode ....... (6 Replies)
Hello,
I wasn't sure where to post this so I posted it here. I've used UNIX quite a bit, LINUX not so much. For some reason, my LINUX script will not execute if I type in the script name and press enter. I'm in the directory where the script is.
test.sh
However, when I use ". ./" it... (5 Replies)
Hi i wrote a script which dosent exists after executing any help
#!/bin/bash
netstat -ptlen | grep 10000
if ; then
echo "Hive Thrift server is running"
exit 0
else
echo "Hive Thrift server is down Trying to Bring up the service" | mail -s "ALERT" team@domain.com
`nohup hive... (7 Replies)
Hi,
I am new to UNIX and want to execute oracle script from unix script.
I have written below script but i am getting below error.
#!/bin/bash
file="/home/usr/control/control_file1"
while read line
do
#$line=@$line
#echo $line
sqlplus tiger/scott@DB
@$line
exit
#echo "$line"
done... (3 Replies)
Discussion started by: vipin kumar rai
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)