How to combine first,second and third fields in a file


 
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# 1  
Old 01-19-2010
How to combine first,second and third fields in a file

Hi Guys,

I have a file as follows:

Code:
1     2 3

There are 5 spaces between 1 and 2 and one space between 2 and 3.

I want:
Code:
123

How can I do this using awk?

I tried using:

Code:
 
awk '$1=$1' file

but it deletes all the spaces.

Thanks.
# 2  
Old 01-19-2010
Code:
$ cat file
1     2 3

$ awk -v OFS="" '$1=$1' file
123

tr \   '\0' < file
123


Last edited by Scott; 01-19-2010 at 08:52 PM..
# 3  
Old 01-19-2010
Code:
$ echo "1     2 3" |sed 's/ //g'
123

# 4  
Old 01-19-2010
Code:
tr -d " " < file

# 5  
Old 01-20-2010
Sorry I gave incomplete information. Actually the file has something like this:
Code:
1     2 3 4 5 6 7

I want:

Code:
123 4 5 6 7

In other words, I want only the first three fields to be lumped together as one field leaving the remaining 4 fields intact.
# 6  
Old 01-20-2010
Code:
sed 's/  *//;s/  *//' infile

# 7  
Old 01-20-2010
Without being too clever:

Code:
$ awk '{print $1$2$3, $4, $5, $6, $7}' file1
123 4 5 6 7

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