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Shell Programming and Scripting

Replace Double space with ||

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# 1  
Old 02-15-2010
Replace Double space with ||
Hi Guys,

I am trying to replace Double space with ||. But even the single space is getting replace with |.

Can you please point out my mistake.

I am trying to do it with translate command

Code:
tr "  " "||"

Regards,
Magesh
# 2  
Old 02-15-2010
Try with sed...

Code:
sed 's/  /||/'g' infile

Last edited by malcomex999; 02-15-2010 at 09:30 AM..
# 3  
Old 02-15-2010
The reason is this: tr translates any character that matches one of the characters in the first string to the character at the same position in the second string. For example, to translate a string to all uppercase, use
Code:
echo "MiXeD cAsE" | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

or shorter
Code:
echo "MiXeD cAsE" | tr '[a-z]' '[A-Z]'

It's not meant to translate sequences of multiple characters. That's what sed and company are for.
# 4  
Old 02-15-2010
thanks malcomex, that worked like charm.. still i am wondering what went wrong in my tr command.. can you or anybody throw some light on it?

thanks for the comment
# 5  
Old 02-15-2010
Pludi already explained it up.

just scroll up a little bit!!!
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