Adding character to spaces in a table

Raynon · #1 (**permalink**) 05-14-2008

Hi All,

I am trying to get the spaces in the below table to be fill up with a character " - ". For eg, coordinates 0202 is a space but i would want to fill up with " - ". Can anybody help ?

Input:

Code:

                                                        
04  D  H                                     
03  C  G  K                                             
02  B     L                                                   
01  A  E  I                                               
   01 02 03 04

Output:

Code:

04  D  H  -  -                                 
03  C  G  K  -                                           
02  B  -  L  -                                                
01  A  E  I  -                                            
   01 02 03 04

Smiling Dragon · #2 (**permalink**) 05-14-2008

A quick solution:

Code:

sed 's/   /  -/g'

This won't work fully if the missing items on the end of each line aren't padded with spaces. In that case a slightly cleverer solution will be required

aju_kup · #3 (**permalink**) 05-14-2008

Code:

sed 's/ /-/g' 65258_space.d

Smiling Dragon · #4 (**permalink**) 05-14-2008

Quote:

Originally Posted by aju_kup

Code:

sed 's/ /-/g' 65258_space.d

Unless I'm missing some significance with the '65258_space.d' (whatever that is), that looks like it would replace every space with a -, producing the following file:

Code:

04--D--H---
03--C--G--K
02--B-----L
01--A--E--I
---01-02-03-04

?

penchal_boddu · #5 (**permalink**) 05-14-2008

Hi,

Try this,

sed '/^0/s/ / -/g' filename .

Hi,

Can anybody suggest me how to leave the last line in the substitution.
Requirement is to do substitution in all the lines except the last line.

I tried

sed '!$s/ / -/g' filename ....But its not working ..giving syntax error

Thanks
Penchal

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