Well, I think you are trying to say "What was the date 7 days ago.
If so, then try this neat trick by bending the timezone back to extremes:-
The value of TZ=CUT168 says "read the system clock and set it to Coordinated Universal Time (aka Zulu or GMT) and go back 168 hours" i.e. 7x24 hours.
Remember to reset the TZ after the tweak or all your trace and logging may get very confusing.
I hope that this helps. If not, please let me know what I've missed.
Robin
Liverpool/Blackburn
UK
Last edited by rbatte1; 11-26-2010 at 10:16 AM..
Reason: Make the date output the same in the echo statement.
Hi all, I'm confused about the proper syntax for multi-conditional if then statements. I'm trying to set limitations on info input on the command line.. i.e.
if ] ;then
$x=$vr1
else
print "You have entered an invalid option."
Can someone please clue me in on what is wrong with my syntax;... (3 Replies)
Hello,
I am having trouble with the syntax with a conditional statement in a BASH script involving multiple conditions. Any suggestions would be greatly appreciated!
if ; then
array=("${array}" "$dnNum" )
fi
i receive this error:
./testscript: ' (4 Replies)
Guys, Im trying to have a script that evaluates multiple conditions :
test.sh:
if
then
echo "host $1"
else
if
then
echo "host $1"
else
echo $1 not valid
exit 1
fi
when I do
./test.sh brazil1
I get: (4 Replies)
Hi All,
I am new to shell scripting.
Can any one say what is wrong in this if statement, that uses multiple conditions
if
then
***************
else
if ( -z $pcs && "$night_time_calc" > "$night_time" )
then
********************************
... (4 Replies)
Hi,
When i use the below code snippet in my shell script OFC_10.sh:
if
then
echo "Success"
exit 2
elif
then
echo "Failure"
exit 6
I get the error message:
./OFC_10.sh: line 41: '
./OFC_10.sh: line 45: '
Line 41 is the line where If loop starts and line 45 is... (2 Replies)
Hello Unix-Forums!
It has been a long time since my last post, but finally I've got a new question:
I know in case you can use multiple patterns by
case $var in
a|b|c|ab)
and so on.
But how would I place an OR between
if ]
then
...
if ]
then
...
I want to execute the "..." if... (3 Replies)
Fellas,
Am new to unix os/ and here the situation , I am trying to write multiple condition statement inside if but it throws me a error
here is my piece of code ,
if ] && ] && ]
then
commands
fi
error : line 15 : `
can someone please advise me how to fix it
Please use... (7 Replies)
Hi Gurus,
Is there a way we can set a logic for this problem ?
The input file looks like below;
1 15 17
2 8 12
3 18 24
4 21 23
5 2 4
6 11 25
So, I would like to print for any row of the input file where the range of value between $2 to $3 lies within the min and max values of Min=10... (2 Replies)
I am analyzing one of the scripts written by another person.script is having multiple if conditions and everything are nested.The code is not formatted properly.Is there any way to identify in Unix to identify begin and end of a particular if block? (6 Replies)
Hello.
I would like to convert the following piece of code from bash to awk.
Here are bash variables in a bash script.
CUR_ROW_ID and ROW_ID_TO_SEARCH contains a string which represent a row id.
The string contain a valid row id.
CUR_ROW_ID sometimes may be null.
CUR_VALUE... (3 Replies)
Discussion started by: jcdole
3 Replies
LEARN ABOUT PHP
datetime.sub
DATETIME.SUB(3) 1 DATETIME.SUB(3)DateTime::sub - Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime object
Object oriented style
SYNOPSIS
public DateTime DateTime::sub (DateInterval $interval)
DESCRIPTION
Procedural style
DateTime date_sub (DateTime $object, DateInterval $interval)
Subtracts the specified DateInterval object from the specified DateTime object.
PARAMETERS
o $object
-Procedural style only: A DateTime object returned by date_create(3). The function modifies this object.
o $interval
- A DateInterval object
RETURN VALUES
Returns the DateTime object for method chaining or FALSE on failure.
EXAMPLES
Example #1
DateTime.sub(3) example
Object oriented style
<?php
$date = new DateTime('2000-01-20');
$date->sub(new DateInterval('P10D'));
echo $date->format('Y-m-d') . "
";
?>
Procedural style
<?php
$date = date_create('2000-01-20');
date_sub($date, date_interval_create_from_date_string('10 days'));
echo date_format($date, 'Y-m-d');
?>
The above examples will output:
2000-01-10
Example #2
Further DateTime.sub(3) examples
<?php
$date = new DateTime('2000-01-20');
$date->sub(new DateInterval('PT10H30S'));
echo $date->format('Y-m-d H:i:s') . "
";
$date = new DateTime('2000-01-20');
$date->sub(new DateInterval('P7Y5M4DT4H3M2S'));
echo $date->format('Y-m-d H:i:s') . "
";
?>
The above example will output:
2000-01-19 13:59:30
1992-08-15 19:56:58
Example #3
Beware when subtracting months
<?php
$date = new DateTime('2001-04-30');
$interval = new DateInterval('P1M');
$date->sub($interval);
echo $date->format('Y-m-d') . "
";
$date->sub($interval);
echo $date->format('Y-m-d') . "
";
?>
The above example will output:
2001-03-30
2001-03-02
NOTES DateTime.modify(3) is an alternative when using PHP 5.2.
SEE ALSO DateTime.add(3), DateTime.diff(3), DateTime.modify(3).
PHP Documentation Group DATETIME.SUB(3)