On 11/4/06, Les Mikesell lesmikesell@gmail.com wrote:
I am looking for an automatic way of transforming my text file into another one with the format
You may try this: cat ./test.txt | awk '{print $1" "$2; print $1" "$3; print $1" "$4}' | grep -v ' $'
$ awk '{for(i=2;i<=NF;i++)printf $1"\t"$i"\n"}' test.txt
That's all.
or, try this.
$ awk '{for(i=2;i<=NF;i++)print $1, $i}' test.txt
I think awk is the best solution for this problem.
The following command does almost exactly what I want:
cat ./filename_introduced_user.txt | awk '{print $1" "$2; print $1" "$3; print $1" "$4; print $1" "$5; print $1" "$6; print $1" "$7; print $1" "$8; print $1" "$9; print $1" "$10; print $1" "$11; print $1" "$12; print $1" "$13; print $1" "$14; print $1" "$15; print $1" "$16; print $1" "$17; print $1" "$18; print $1" "$19; print $1" "$20; print $1" "$21; print $1" "$22; print $1" "$23; print $1" "$24; print $1" "$25; print $1" "$26; print $1" "$27}' | grep -v ' $' > another_filename_introduced_user.txt
I am wondering whether it is possible to write a script to do the same but for a number of columns introduced by the user.
Thanks in advance,
If you want to adapt to the columns in the file, this would work:
#!/bin/sh while read LINE do set -- $LINE N=$1 while shift do if [ -n "$1" ] then echo $N $1 fi done done If you want to set a limit on the columns you could add a counter on the loop doing the shift and pass a value in on the command line.
Thanks, Les. I have meanwhile learned a bit of Ruby and I could do the same with it.
Paul