Converting Multiple rows to Single Row using unix commands


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# 1  
Question Converting Multiple rows to Single Row using unix commands

Can somebody help me in solving this..

Input data is like
Code:
0 A
1 B
2 C
3 D
0 A1
1 B1
2 C1
3 D1
0 A2
1 B2
2 C2
3 D2

Output should be like
Code:
A B C D
A1 B1 C1 D1
A2 B2 C2 D2

Thanks in Advance

Last edited by Franklin52; 07-14-2011 at 06:05 PM.. Reason: Please use code tags for data and code samples, thank you
# 2  
Code:
awk '{print $2}' file | paste -d" " - - - -

# 3  
Code:
sed -n 's/[0-3]//;s/ //;p' inputfile | awk -v ORS= '{print $0" ";if(NR%4==0){print "\n"}}'

# 4  
Hi Itomuno, the command is working fine.Thanks a lot.....Is it possible to make it more generic like
INPUT:
Code:
0   A
1 B
2 C
-  -
-  -
-  -
N XX
0 A1
1 B1
2 C1
-  -
-  -
-  -
N XX1
0  A2
1  B2
2  C2
3  D3
-   -
-   -
N XX2


OUTPUT :
Code:
A  B  C  D  - - - -XX
A1 B1 C1 D1- - - -XX1
A2 B2 C2 D2    XX2
- - - - - - - - - - -  - - - - -
- - - - - -  - - - - - - - - - -

Where N can be any value

Last edited by Franklin52; 07-14-2011 at 06:06 PM.. Reason: Please use code tags for data and code samples, thank you
# 5  
This will do it for any "N" and even if some lines are missing between 0+1 and N:
Code:
#!/usr/bin/ksh
mOutLine=""
while read mSeq mValue; do
  if [[ "${mSeq}" = "0" ]]; then
    if [[ "${mOutLine}" != "" ]]; then
      echo ${mOutLine}
      mOutLine=""
    fi
  fi
  mOutLine=${mOutLine}' '${mValue}
done < input_file
if [[ "${mOutLine}" != "" ]]; then
  echo ${mOutLine}
fi

# 6  
Hi Shell_Life, after running your script, I am getting some error like
"[[: not found". I am not understanding what it is...Can you please solve this
# 7  
What shell are you running it?

The shell was written to work with "ksh" as in the first line.

Type: "which ksh"
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