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Shell Programming and Scripting

Transpose columns to Rows

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# 8  
Old 01-17-2011
Or you could use Perl -

Code:
$
$
$ cat f3
Start
A 1
B 2
C 3
D 4
E 5
End

Start
A 11
B 12
C 23
D 25
E 21
End
$
$
$
$ perl -ane 'if (/^Start/) {$in=1}
             elsif (/^End/) {push @m, []; $in=0; $h=1}
             elsif ($in) {
               if (!$h) {push @{$m[0]},$F[0]; push @{$m[1]},$F[1]}
               else {push @{$m[$#m]}, $F[1]}
             }
             END {foreach $i (@m) {print join "\t",@$i,"\n"}}
            ' f3
A       B       C       D       E
1       2       3       4       5
11      12      23      25      21

$
$
$

tyler_durden
# 9  
Old 01-17-2011
Quote:
Originally Posted by quincyjones
@Radoulov code

Code is great. is it possible to print tab delimited output from it?
Yes,
just define the FS:

Code:
awk -F'\t' ...

# 10  
Old 01-28-2011
@Radoulov
Is it possible to apply the code to transpose 30000 rows and 1000 columns ?
When I apply your script nothing happened except my system freezing.
# 11  
Old 01-28-2011
What system are you using? Which awk implementation and version?
Could you try the code with a small sample, just to check if it's
really because of the size?
# 12  
Old 01-28-2011
it works fine with small file. but not with the big file i specified in recent post. I'm using 4GB RAM - i5 processor MacBookpro. New version of awk I guess.
# 13  
Old 01-28-2011
Could you please post the output of the following command:

Code:
awk --version | head -1

# 14  
Old 01-28-2011
Code:
awk version 20070501
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