Here's just a stupid snippet to check return values. Should print
TRUE
NOT TRUE
when executed. If you wanted to test for not true, you could use -ne instead of -eq.
Code:
#!/usr/bin/ksh
return_true () {
return 0
}
return_not_true () {
return 1
}
return_true
if [[ $? -eq 0 ]]
then
echo "TRUE"
else
echo "NOT TRUE"
fi
return_not_true
if [[ $? -eq 0 ]]
then
echo "TRUE"
else
echo "NOT TRUE"
fi
Hello there!
Here is my problem. I hope I can get some help about it.
I need to know how can I get the return code of an application in the Unix shell script.
The script is like below:
PREVIOUS STATEMENT & VARIABLES
sqlplus scott/tiger @$sqldir/$sqlscript
NEXT STATEMENT (Like... (7 Replies)
Hello,
I still have problems when trying to figure out if the status of an ftp was successful. I ftp to different types (nt, vax, unix, etc...) of machines. I am trying to write a universal script that will ftp a file and then check to see if the ftp was successful. I have tried the... (12 Replies)
hi, I set the crontab to execute script A every 5 minutes from 9:00 am to 4:00 pm everyday, now at 12:00am I want to run another script if and only if all the previous runs of script A return OK, can anyone tell me how it could be done? thank you very very much! (4 Replies)
Hi all
below is a snippet of my perl codesystem ("scp -pq $dest_file $path");How i can i trap the return status? ie if the scp fails how can i know ? (2 Replies)
I have the question:
How return the exit code from then assign :
VAR=$(command ) for ex. VAR=$(ls ....)
VAREXIT=$?
echo $VAREXIT
VAREXIT is equal to 0 if the directory exist or not exist. WHI??
if i execute the command direct from line-command , the value of $? is different if... (1 Reply)
there is something wrong with my system. when I do this:
diff file1 file1 && echo 1
the output is 1.
but
diff file1 file2 >/dev/null && echo 1
output nothing
while
diff file1 file2 >/dev/null || echo 1
shows 1.
the same with "grep" return status. they are both GNU utilities.... (5 Replies)
Hi can you explain me, what does variables $@ and $* return and how are they used, if can give me a sample example it could be helpful.
Thanks in advance,
Regards,
Abhishek S. (1 Reply)
Not sure where the problem is. I can run the script without any issue using the following command.
. /opt/app/scripts/cdc_migration.sh
But it fails with the below error when I try it this way
/opt/app/scripts/cdc_migration.sh
/opt/app/scripts/cdc_migration.sh: line 65: return: can only... (1 Reply)
Hi All,
Good Day, seeking for your assistance on how to not perform my 2nd, 3rd,4th etc.. function if my 1st function is in else condition.
#Body
function1()
{
if
then
echo "exist"
else
echo "not exist"
}
#if not exist in function1 my all other function will not proceed.... (4 Replies)
Discussion started by: meister29
4 Replies
LEARN ABOUT PHP
define
DEFINE(3) 1 DEFINE(3)define - Defines a named constantSYNOPSIS
bool define (string $name, mixed $value, [bool $case_insensitive = false])
DESCRIPTION
Defines a named constant at runtime.
PARAMETERS
o $name
- The name of the constant.
o $value
- The value of the constant; only scalar and null values are allowed. As of PHP 7 it also possible to use array value. Scalar val-
ues are integer, float, string or boolean values. It is possible to define resource constants, however it is not recommended and
may cause unpredictable behavior.
o $case_insensitive
- If set to TRUE, the constant will be defined case-insensitive. The default behavior is case-sensitive; i.e. CONSTANT and Con-
stant represent different values.
Note
Case-insensitive constants are stored as lower-case.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
CHANGELOG
+--------+---------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------+
| 7.0.0 | |
| | |
| | |
| | array values are allowed. |
| | |
+--------+---------------------------+
EXAMPLES
Example #1
Defining Constants
<?php
define("CONSTANT", "Hello world.");
echo CONSTANT; // outputs "Hello world."
echo Constant; // outputs "Constant" and issues a notice.
define("GREETING", "Hello you.", true);
echo GREETING; // outputs "Hello you."
echo Greeting; // outputs "Hello you."
// Works as of PHP 7
define('ANIMALS', array(
'dog',
'cat',
'bird'
));
echo ANIMALS[1]; // outputs "cat"
?>
SEE ALSO defined(3), constant(3), The section on Constants.
PHP Documentation Group DEFINE(3)