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Center output of 'cal' command in terminal

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# 8  
Old 02-03-2011
Code:
w=$(( $COLUMNS / 2 - 20 ))
cal | while IFS= read -r line
do
  printf "%${w}s %s\n" '' "$line"
done

This User Gave Thanks to cfajohnson For This Post:
AlphaLexman
# 9  
Old 02-03-2011
Quote:
Originally Posted by Scrutinizer
Do you mean a little bit to the left or all the way to the left?
All the way to the left.
And so was the code by cfajohnson.

I really like the idea of setting the IFS to newline, but this is how I imagine the problem:

In my code let newline={/n}
Here is the last two lines of Feb 2011:
Code:
20 21 22 23 24 25 26{/n}
27 28{/n}

And I think it should be:
Code:
20 21 22 23 24 25 26{/n}
27 28               {/n}

# 10  
Old 02-03-2011
Hi, as you stated yourself in the first post this will not run in a script (COLUMNS will not be available there). You need to source it from a file:
Code:
. file

or run it directly in your interactive shell.
Another option would be to pass $COLUMNS as a parameter to the script...
This User Gave Thanks to Scrutinizer For This Post:
AlphaLexman
# 11  
Old 02-03-2011
duh, I knew that, that was last night and I was tired.
Now the code from cfajohnson works I just need to tweak the number 20.

Thanks to all that helped.

EDIT: This works!
Code:
w=$(( $COLUMNS / 2 - 10 ))
cal | while IFS= read -r line
do
  printf "%${w}s %s\n" '' "$line"
done

Last edited by AlphaLexman; 02-03-2011 at 09:29 AM..
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