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how to change time with .bashrc and alias

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 PostPosted: Sun Sep 25, 2011 6:32 am   

Joined: Sun Sep 25, 2011 6:24 am
Posts: 1
i want to set massage(Today is) when i type date command.please solve it for me.and please refer me any site for learn more about it.

 PostPosted: Tue Sep 27, 2011 11:16 am   
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Joined: Wed May 03, 2006 2:05 pm
Posts: 242
Hello fahadul!

It sounds like an alias is exactly what you want. Take a look at the alias documentation on TLDP (the linux documentation project):

As far as what commands to use, you'll likely want to use "echo" to combine your "Today is" text with the output of "date".

I hope this helps!

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 PostPosted: Tue Sep 27, 2011 11:07 pm   
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Joined: Sun Jun 27, 2010 12:57 am
Posts: 192
Tip: don't make an alias called 'date' and use the command 'date' in it :)
(you can use the full path /bin/date)

 PostPosted: Sat Nov 05, 2011 9:31 pm   
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Joined: Wed Jun 08, 2011 8:27 am
Posts: 189
Location: outer Shpongolia
Sounds like a homework...?

Anyway, does it have to be printed just when typing « date », with no arguments?
If so, you'll have to write a function called « date » too in your .bashrc file, in which you'll check whether
there are arguments, and if not, print the string « Today is:<blank> » followed by
the output of the date command. (hint: the keyword command)
If there are arguments, then simply run date(1) with the arguments provided.



date() { ((! $#)) && printf '%s %s\n' 'Today is:' "$(command date)" || command date "$@"; }



In order:

I invite you to follow the full BashGuide.

P.S.: Wooledge >> TLDP.

 PostPosted: Tue Oct 21, 2014 5:36 am   

Joined: Mon Oct 20, 2014 9:53 am
Posts: 202
alias date='/bin/date +"Today is : %Y %m %d and time is %H:%M" '
# it's anyway a bad idea to use existing command name as an alias.

# nice for easy lookup of date formatters
man date | grep -E -e '^[[:space:]]+%'

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