Sponsored Content
Top Forums UNIX for Dummies Questions & Answers what's the difference of these two commands? Post 70023 by RTM on Monday 25th of April 2005 10:27:27 AM
Old 04-25-2005
echo `echo \`date\`` - due to the back ticks, the shell will complete the `date` portion, then echo it back to you (a waste of processor since date automatically puts it to standard out.


echo `echo date` - yes, it does print the word date since that is what you told it to do - echo date - not echo the output of the command date. You could set up a variable such as today to show it.
today="date"
echo $today
today=`date`
echo $today
 

10 More Discussions You Might Find Interesting

1. Solaris

difference between these commands??

Hi, I would like to know what is the difference between executing the mount command in the following ways... eg: /usr/sbin/mount -F <something> AND mount -F <something> I mean , just executing the mount command as opposed to specifying the path and then executing it? ... (3 Replies)
Discussion started by: wrapster
3 Replies

2. UNIX for Dummies Questions & Answers

Difference in commands

Hello All, I have a question about the difference between two commands. I am using Korn and was told by the Unix admin that 'nohup <command> &' equals 'nohup ./<command> &. That there is no difference betwewen the two. Is this true? Also, does the command './<command> &' provide a disconnect... (4 Replies)
Discussion started by: grin1dan
4 Replies

3. Shell Programming and Scripting

Difference in auth key commands?

Good morning! What is the difference between: ssh-keygen -t rsa and ssh-keygen -b 2048 -t rsa? Thanks Bigben (2 Replies)
Discussion started by: bigben1220
2 Replies

4. Shell Programming and Scripting

Difference between the commands

HI all, Please clarify the difference between the following pm2srv:/var/opt/temip/vf/scripts/saiki#awk '{RS = ":"} ; {print $0}' testf2 hey:wasup:howru: Yes I am fine pm2srv:/var/opt/temip/vf/scripts/saiki#awk 'BEGIN { RS = ":" } ; { print $0 }' testf2 hey wasup howru Yes I... (0 Replies)
Discussion started by: saiki
0 Replies

5. UNIX for Dummies Questions & Answers

Check for difference in output of 2 commands?

Hello! I'm just learning the shell, and I would really like to know how to do this: Given these 2 commands: ls -l ls -le How can I, with a one-liner, ask the shell to show me visually in the shell, what the difference is between the output of the two commands? They look the same to me... (6 Replies)
Discussion started by: turbofayce
6 Replies

6. Shell Programming and Scripting

Difference between 2 grep - commands

Hi, I need to know the difference between this commands: grep * *search* grep "*" *search* As far as i know does the 2nd command search for files which have a name with *search* and greps then all which have chars from a-z in the file content. But was does the first command?? Best... (1 Reply)
Discussion started by: xus
1 Replies

7. Solaris

Performance difference between commands

Looking at the performance hit on my server, does it matter wich command I run? client # rsh server tar –cf - . | tar –cv –f – or server # tar –cf – . | rsh client ‘cd target && tar –xv -f –‘ I think it doesn't really matter because both command strings involve a tar being run on... (4 Replies)
Discussion started by: petervg
4 Replies

8. AIX

HACMP: difference between 'cl' commands and 'cli' commands

Hi all, I'm new in this forum. I'm looking for the difference between the HACMP commands with the prefix "cl" and "cli". The first type are under /usr/es/sbin/cluster/sbin directory and the second are under /usr/es/sbin/cluster/cspoc directory. I know that the first are called HACMP for AIX... (0 Replies)
Discussion started by: peppix
0 Replies

9. Shell Programming and Scripting

Difference between these cron commands

Hi all I want to make sure I was understanding this correctly if a cron job command was * */20 * * * command does that mean this command will run every 20 hours? also what is the difference between the following two? 0,20,40 * * * * command 20 * * * * command I believe the first... (3 Replies)
Discussion started by: subway69
3 Replies

10. Solaris

Difference between commands

i need to know the difference between two commands ps -ef|grep oracle ps -ef|grep -v grep |grep oracle (1 Reply)
Discussion started by: smazshah
1 Replies
DATETIME.SETTIME(3)							 1						       DATETIME.SETTIME(3)

DateTime::setTime - Sets the time

       Object oriented style

SYNOPSIS
public DateTime DateTime::setTime (int $hour, int $minute, [int $second]) DESCRIPTION
Procedural style DateTime date_time_set (DateTime $object, int $hour, int $minute, [int $second]) Resets the current time of the DateTime object to a different time. PARAMETERS
o $object -Procedural style only: A DateTime object returned by date_create(3). The function modifies this object. o $hour - Hour of the time. o $minute - Minute of the time. o $second - Second of the time. RETURN VALUES
Returns the DateTime object for method chaining or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | Changed the return value on success from NULL to | | | DateTime. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 DateTime.setTime(3) example Object oriented style <?php $date = new DateTime('2001-01-01'); $date->setTime(14, 55); echo $date->format('Y-m-d H:i:s') . " "; $date->setTime(14, 55, 24); echo $date->format('Y-m-d H:i:s') . " "; ?> Procedural style <?php $date = date_create('2001-01-01'); date_time_set($date, 14, 55); echo date_format($date, 'Y-m-d H:i:s') . " "; date_time_set($date, 14, 55, 24); echo date_format($date, 'Y-m-d H:i:s') . " "; ?> The above examples will output something similar to: 2001-01-01 14:55:00 2001-01-01 14:55:24 Example #2 Values exceeding ranges are added to their parent values <?php $date = new DateTime('2001-01-01'); $date->setTime(14, 55, 24); echo $date->format('Y-m-d H:i:s') . " "; $date->setTime(14, 55, 65); echo $date->format('Y-m-d H:i:s') . " "; $date->setTime(14, 65, 24); echo $date->format('Y-m-d H:i:s') . " "; $date->setTime(25, 55, 24); echo $date->format('Y-m-d H:i:s') . " "; ?> The above example will output: 2001-01-01 14:55:24 2001-01-01 14:56:05 2001-01-01 15:05:24 2001-01-02 01:55:24 SEE ALSO
DateTime.setDate(3), DateTime.setISODate(3). PHP Documentation Group DATETIME.SETTIME(3)
All times are GMT -4. The time now is 03:19 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy