column to row

How to convert a single column data to a row using  
unix command(s)? For example, convert
   4
   12
   A
   B33
to
   
   4    12   A   B33

Thank you.
geermuAsked:
Who is Participating?
 
ozoConnect With a Mentor Commented:
tr '\012' ' '
0
 
ecwCommented:
echo `cat file`
0
 
elfieCommented:
another one :

for i in `cat file`
do
print -n $i" " 
done

Between " " you can put some delimiters.
0
 
geermuAuthor Commented:
Outstanding! Thank you all.
I will accept ozo's comment as an answer. ¡¡
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