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Accepted
Kumar
Asked: 2010-01-28 21:19:03 +0800 CST

Create file with variable value in Unix

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How can I create a file in unix or linux based on variable value ?

Ex:

If I store date in a variable in linux, 

YESTERDAY=`date --date='1 day ago' '+%d-%m-%Y'`

it will store value to YESTERDAY as 27-1-2010.

Here I want to create file as name of 27-1-2010,

How can I create file with variable 'YESTERDAY' ?

i want appending operation too. How can i do this ?

linux unix command

4 Answers

  1. touch $YESTERDAY

    or

    echo "something" > $YESTERDAY

    to append:

    echo "something" >> $YESTERDAY
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  2. I don't see anything wrong with echo "foo" >> $YESTERDAY or cat otherfile >> $YESTERDAY

    What are you trying to cat? Or alternately what are you trying to put into the file called 27-1-2010?

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  3. Best Answer

    YESTERDAY=date --date='1 day ago' '+%d-%m-%Y'

    cat >> $YESTERDAY

    It too working well with appending operation

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  4. You can use the variable $YESTERDAY in commands. Like touch $YESTERDAY, mv original_file $YESTERDAY

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