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Add a column to a file

 
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# 1  
Old 04-09-2015
Add a column to a file
Hi,
I have this data file that contains:
Code:
1	A
2	B
3	C
4	D
5	E
6	F
7	G
8	H
9	I

I want the results to be:
Code:
1	A	A
2	B	A
3	C	A
4	D	A
5	E	A
6	F	A
7	G	A
8	H	A
9	I	A
1	A	B
2	B	B
3	C	B
4	D	B
5	E	B
6	F	B
7	G	B
8	H	B
9	I	B
1	A	C
2	B	C
3	C	C
4	D	C
5	E	C
6	F	C
7	G	C
8	H	C
9	I	C
and on and on to line 9....

Many thanks!
Moderator's Comments:
Mod Comment Without CODE tags, readers can't tell that your data uses tabs instead of spaces as field delimiters.

Please format your posts as required by forum rules and stop depending on forum moderators to clean up all of your posts.
Last edited by Don Cragun; 04-09-2015 at 03:13 PM.. Reason: Add CODE tags, again.
# 2  
Old 04-09-2015
In BASH:

Code:
printf "%s\n" "-v N="{A..Z} | while read LINE
do
        awk $LINE '{ $0 = $0 "\t" V } 1' inputfile
done > outputfile

# 3  
Old 04-09-2015
Your desired results are not clear. Is this supposed to be an infinite sequence, or is it supposed to end? If it is supposed to end, where is the sequence supposed to end?
Perhaps one of the following is your desired end point:
Code:
9	I	I
9	I	Z
9	I	z
9	I	ZZZZZZZZZZZZZZZZZZZZZZ

Is the end point supposed to be determine from the input somehow?

Are you passing a parameter to your script to set the end point?

What operating system are you using?

What shell are you using?

What have you tried to do this on your own?

With well over 150 posts and help on sixty-eight other questions that you have posted to these forums, we would hope that you would have a good idea of two or three ways that a problem like this could be solved.
# 4  
Old 04-09-2015
file d1 contain:

Code:
1       A
2       B
3       C
4       D
5       E
6       F
7       G
8       H
9       I

I have this script: test.script

Code:
#!/bin/ksh

DAY=`date +%y%m%d`
H=`date +%H`
D=`date +%d`
cat d1 | while read line
do
a=$(echo $line | awk '{print $1}')
n=$(echo $line | awk '{print $2}')
awk '{print $0, $n}' d1 >> d2
done

./test.script 

cat d2

1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I
1       A 1     A
2       B 2     B
3       C 3     C
4       D 4     D
5       E 5     E
6       F 6     F
7       G 7     G
8       H 8     H
9       I 9     I

I expect:
Code:
1	A	A
2	B	A
3	C	A
4	D	A
5	E	A
6	F	A
7	G	A
8	H	A
9	I	A
1	A	B
2	B	B
3	C	B
4	D	B
5	E	B
6	F	B
7	G	B
8	H	B
9	I	B
1	A	C
2	B	C
3	C	C
4	D	C
5	E	C
6	F	C
7	G	C
8	H	C
9	I	C

on and on.....

Given that:
Code:
awk '{print $0, "A"}' d1

1	A	A
2	B	A
3	C	A
4	D	A
5	E	A
6	F	A
7	G	A
8	H	A
9	I	A

Thanks!
Last edited by Don Cragun; 04-09-2015 at 03:47 PM.. Reason: Add CODE and ICODE tags, again.
# 5  
Old 04-09-2015
Moderator's Comments:
Mod Comment If you continue to refuse to properly format your posts, you will be banned from the UNIX & Linux Forums.
# 6  
Old 04-09-2015
Hi, a builtin solution:
Code:
while read a b ; do while read xx; do echo -e "$xx\t$b"; done <d1 ; done <d1

Regards.
This User Gave Thanks to disedorgue For This Post:
bobo
# 7  
Old 04-09-2015
Wow! it works! Beautiful mind!
 
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